43072969 has 3 divisors (see below), whose sum is σ = 43079533. Its totient is φ = 43066406.

The previous prime is 43072961. The next prime is 43072979. The reversal of 43072969 is 96927034.

The square root of 43072969 is 6563.

It is a perfect power (a square), and thus also a powerful number.

43072969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 43072969 - 2³ = 43072961 is a prime.

It is a super-2 number, since 2×43072969² = 3710561316949922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43072961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3282 + ... + 9844.

Almost surely, 2^43072969 is an apocalyptic number.

43072969 is the 6563-rd square number.

43072969 is the 3282-nd centered octagonal number.

It is an amenable number.

43072969 is a deficient number, since it is larger than the sum of its proper divisors (6564).

43072969 is an frugal number, since it uses more digits than its factorization.

43072969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13126 (or 6563 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The cubic root of 43072969 is about 350.5378641677.

The spelling of 43072969 in words is "forty-three million, seventy-two thousand, nine hundred sixty-nine".