57668407 has 2 divisors, whose sum is σ = 57668408. Its totient is φ = 57668406.

The previous prime is 57668393. The next prime is 57668423. The reversal of 57668407 is 70486675.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57668407 - 2¹⁵ = 57635639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57668497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28834203 + 28834204.

It is an arithmetic number, because the mean of its divisors is an integer number (28834204).

Almost surely, 2^57668407 is an apocalyptic number.

57668407 is a deficient number, since it is larger than the sum of its proper divisors (1).

57668407 is an equidigital number, since it uses as much as digits as its factorization.

57668407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 57668407 is about 7593.9717539638. The cubic root of 57668407 is about 386.3485781561.

The spelling of 57668407 in words is "fifty-seven million, six hundred sixty-eight thousand, four hundred seven".