57406871 has 2 divisors, whose sum is σ = 57406872. Its totient is φ = 57406870.

The previous prime is 57406859. The next prime is 57406879. The reversal of 57406871 is 17860475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57406871 - 2¹⁸ = 57144727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57406879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28703435 + 28703436.

It is an arithmetic number, because the mean of its divisors is an integer number (28703436).

Almost surely, 2^57406871 is an apocalyptic number.

57406871 is a deficient number, since it is larger than the sum of its proper divisors (1).

57406871 is an equidigital number, since it uses as much as digits as its factorization.

57406871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 57406871 is about 7576.7322111844. The cubic root of 57406871 is about 385.7636409049.

The spelling of 57406871 in words is "fifty-seven million, four hundred six thousand, eight hundred seventy-one".