57740407 has 2 divisors, whose sum is σ = 57740408. Its totient is φ = 57740406.

The previous prime is 57740377. The next prime is 57740489. The reversal of 57740407 is 70404775.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57740407 - 2¹⁹ = 57216119 is a prime.

It is equal to p_3435892 and since 57740407 and 3435892 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57740707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28870203 + 28870204.

It is an arithmetic number, because the mean of its divisors is an integer number (28870204).

Almost surely, 2^57740407 is an apocalyptic number.

57740407 is a deficient number, since it is larger than the sum of its proper divisors (1).

57740407 is an equidigital number, since it uses as much as digits as its factorization.

57740407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 57740407 is about 7598.7108775107. The cubic root of 57740407 is about 386.5092989065.

The spelling of 57740407 in words is "fifty-seven million, seven hundred forty thousand, four hundred seven".