57438737 has 2 divisors, whose sum is σ = 57438738. Its totient is φ = 57438736.

The previous prime is 57438707. The next prime is 57438791. The reversal of 57438737 is 73783475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54184321 + 3254416 = 7361^2 + 1804^2 .

It is a cyclic number.

It is not a de Polignac number, because 57438737 - 2⁶ = 57438673 is a prime.

It is not a weakly prime, because it can be changed into another prime (57438707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28719368 + 28719369.

It is an arithmetic number, because the mean of its divisors is an integer number (28719369).

Almost surely, 2^57438737 is an apocalyptic number.

It is an amenable number.

57438737 is a deficient number, since it is larger than the sum of its proper divisors (1).

57438737 is an equidigital number, since it uses as much as digits as its factorization.

57438737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 44.

The square root of 57438737 is about 7578.8348049024. The cubic root of 57438737 is about 385.8350055932.

The spelling of 57438737 in words is "fifty-seven million, four hundred thirty-eight thousand, seven hundred thirty-seven".