57736643 has 2 divisors, whose sum is σ = 57736644. Its totient is φ = 57736642.

The previous prime is 57736621. The next prime is 57736667. The reversal of 57736643 is 34663775.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57736643 - 2⁶ = 57736579 is a prime.

It is a super-4 number, since 4×57736643⁴ (a number of 32 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57736643.

It is not a weakly prime, because it can be changed into another prime (57736673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28868321 + 28868322.

It is an arithmetic number, because the mean of its divisors is an integer number (28868322).

Almost surely, 2^57736643 is an apocalyptic number.

57736643 is a deficient number, since it is larger than the sum of its proper divisors (1).

57736643 is an equidigital number, since it uses as much as digits as its factorization.

57736643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 41.

The square root of 57736643 is about 7598.4631998846. The cubic root of 57736643 is about 386.5009000937.

The spelling of 57736643 in words is "fifty-seven million, seven hundred thirty-six thousand, six hundred forty-three".