57909643 has 8 divisors (see below), whose sum is σ = 65212416. Its totient is φ = 50946600.

The previous prime is 57909637. The next prime is 57909647. The reversal of 57909643 is 34690975.

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 57909643 - 2⁵ = 57909611 is a prime.

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 57909643.

It is not an unprimeable number, because it can be changed into a prime (57909647) 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, 84571 + ... + 85252.

It is an arithmetic number, because the mean of its divisors is an integer number (8151552).

Almost surely, 2^57909643 is an apocalyptic number.

57909643 is a deficient number, since it is larger than the sum of its proper divisors (7302773).

57909643 is a wasteful number, since it uses less digits than its factorization.

57909643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169865.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 57909643 is about 7609.8385659618. The cubic root of 57909643 is about 386.8865476338.

The spelling of 57909643 in words is "fifty-seven million, nine hundred nine thousand, six hundred forty-three".