57887213 has 2 divisors, whose sum is σ = 57887214. Its totient is φ = 57887212.

The previous prime is 57887191. The next prime is 57887233. The reversal of 57887213 is 31278875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57729604 + 157609 = 7598^2 + 397^2 .

It is a cyclic number.

It is not a de Polignac number, because 57887213 - 2¹⁰ = 57886189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57887233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28943606 + 28943607.

It is an arithmetic number, because the mean of its divisors is an integer number (28943607).

Almost surely, 2^57887213 is an apocalyptic number.

It is an amenable number.

57887213 is a deficient number, since it is larger than the sum of its proper divisors (1).

57887213 is an equidigital number, since it uses as much as digits as its factorization.

57887213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 41.

The square root of 57887213 is about 7608.3646731739. The cubic root of 57887213 is about 386.8365905775.

The spelling of 57887213 in words is "fifty-seven million, eight hundred eighty-seven thousand, two hundred thirteen".