57690443 has 4 divisors (see below), whose sum is σ = 57731760. Its totient is φ = 57649128.

The previous prime is 57690439. The next prime is 57690467. The reversal of 57690443 is 34409675.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57690443 - 2² = 57690439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57690397 and 57690406.

It is not an unprimeable number, because it can be changed into a prime (57690433) 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, 18488 + ... + 21381.

It is an arithmetic number, because the mean of its divisors is an integer number (14432940).

Almost surely, 2^57690443 is an apocalyptic number.

57690443 is a deficient number, since it is larger than the sum of its proper divisors (41317).

57690443 is a wasteful number, since it uses less digits than its factorization.

57690443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41316.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 57690443 is about 7595.4225030606. The cubic root of 57690443 is about 386.3977818337.

It can be divided in two parts, 576 and 90443, that added together give a palindrome (91019).

The spelling of 57690443 in words is "fifty-seven million, six hundred ninety thousand, four hundred forty-three".