43728969 has 8 divisors (see below), whose sum is σ = 58538592. Its totient is φ = 29036000.

The previous prime is 43728953. The next prime is 43728977. The reversal of 43728969 is 96982734.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43728969 - 2⁴ = 43728953 is a prime.

It is a super-2 number, since 2×43728969² = 3824445459605922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43728929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28284 + ... + 29789.

It is an arithmetic number, because the mean of its divisors is an integer number (7317324).

Almost surely, 2^43728969 is an apocalyptic number.

It is an amenable number.

43728969 is a deficient number, since it is larger than the sum of its proper divisors (14809623).

43728969 is a wasteful number, since it uses less digits than its factorization.

43728969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58327.

The product of its digits is 653184, while the sum is 48.

The square root of 43728969 is about 6612.7882923922. The cubic root of 43728969 is about 352.3084659385.

The spelling of 43728969 in words is "forty-three million, seven hundred twenty-eight thousand, nine hundred sixty-nine".