16432969 has 4 divisors (see below), whose sum is σ = 18780544. Its totient is φ = 14085396.

The previous prime is 16432943. The next prime is 16432979. The reversal of 16432969 is 96923461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16432969 - 2¹³ = 16424777 is a prime.

It is a super-2 number, since 2×16432969² = 540084940309922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16432909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173777 + ... + 1173790.

It is an arithmetic number, because the mean of its divisors is an integer number (4695136).

Almost surely, 2^16432969 is an apocalyptic number.

It is an amenable number.

16432969 is a deficient number, since it is larger than the sum of its proper divisors (2347575).

16432969 is an equidigital number, since it uses as much as digits as its factorization.

16432969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347574.

The product of its digits is 69984, while the sum is 40.

The square root of 16432969 is about 4053.7598596858. The cubic root of 16432969 is about 254.2369551848.

It can be divided in two parts, 164 and 32969, that added together give a palindrome (33133).

The spelling of 16432969 in words is "sixteen million, four hundred thirty-two thousand, nine hundred sixty-nine".