43397057 has 8 divisors (see below), whose sum is σ = 47445312. Its totient is φ = 39366000.

The previous prime is 43397033. The next prime is 43397063. The reversal of 43397057 is 75079334.

43397057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43397057 is a prime.

It is a super-2 number, since 2×43397057² = 3766609112522498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43397057.

It is not an unprimeable number, because it can be changed into a prime (43397017) 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 7 ways as a sum of consecutive naturals, for example, 1307 + ... + 9407.

It is an arithmetic number, because the mean of its divisors is an integer number (5930664).

Almost surely, 2^43397057 is an apocalyptic number.

It is an amenable number.

43397057 is a deficient number, since it is larger than the sum of its proper divisors (4048255).

43397057 is a wasteful number, since it uses less digits than its factorization.

43397057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8599.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 43397057 is about 6587.6442678700. The cubic root of 43397057 is about 351.4148362399.

The spelling of 43397057 in words is "forty-three million, three hundred ninety-seven thousand, fifty-seven".