57732989 has 2 divisors, whose sum is σ = 57732990. Its totient is φ = 57732988.

The previous prime is 57732979. The next prime is 57733031. The reversal of 57732989 is 98923775.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53772889 + 3960100 = 7333^2 + 1990^2 .

It is a cyclic number.

It is not a de Polignac number, because 57732989 - 2¹⁶ = 57667453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57732919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28866494 + 28866495.

It is an arithmetic number, because the mean of its divisors is an integer number (28866495).

Almost surely, 2^57732989 is an apocalyptic number.

It is an amenable number.

57732989 is a deficient number, since it is larger than the sum of its proper divisors (1).

57732989 is an equidigital number, since it uses as much as digits as its factorization.

57732989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 50.

The square root of 57732989 is about 7598.2227527232. Note that the first 3 decimals coincide. The cubic root of 57732989 is about 386.4927463805.

The spelling of 57732989 in words is "fifty-seven million, seven hundred thirty-two thousand, nine hundred eighty-nine".