57420967 has 2 divisors, whose sum is σ = 57420968. Its totient is φ = 57420966.

The previous prime is 57420941. The next prime is 57420989. The reversal of 57420967 is 76902475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57420967 - 2¹¹ = 57418919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57420367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28710483 + 28710484.

It is an arithmetic number, because the mean of its divisors is an integer number (28710484).

Almost surely, 2^57420967 is an apocalyptic number.

57420967 is a deficient number, since it is larger than the sum of its proper divisors (1).

57420967 is an equidigital number, since it uses as much as digits as its factorization.

57420967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 57420967 is about 7577.6623704148. The cubic root of 57420967 is about 385.7952124989.

The spelling of 57420967 in words is "fifty-seven million, four hundred twenty thousand, nine hundred sixty-seven".