57740987 has 2 divisors, whose sum is σ = 57740988. Its totient is φ = 57740986.

The previous prime is 57740933. The next prime is 57741031. The reversal of 57740987 is 78904775.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57740987 - 2⁶ = 57740923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57740087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28870493 + 28870494.

It is an arithmetic number, because the mean of its divisors is an integer number (28870494).

Almost surely, 2^57740987 is an apocalyptic number.

57740987 is a deficient number, since it is larger than the sum of its proper divisors (1).

57740987 is an equidigital number, since it uses as much as digits as its factorization.

57740987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 57740987 is about 7598.7490417831. The cubic root of 57740987 is about 386.5105930588.

The spelling of 57740987 in words is "fifty-seven million, seven hundred forty thousand, nine hundred eighty-seven".