57831797 has 2 divisors, whose sum is σ = 57831798. Its totient is φ = 57831796.

The previous prime is 57831793. The next prime is 57831811. The reversal of 57831797 is 79713875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55145476 + 2686321 = 7426^2 + 1639^2 .

It is a cyclic number.

It is not a de Polignac number, because 57831797 - 2² = 57831793 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57831791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28915898 + 28915899.

It is an arithmetic number, because the mean of its divisors is an integer number (28915899).

Almost surely, 2^57831797 is an apocalyptic number.

It is an amenable number.

57831797 is a deficient number, since it is larger than the sum of its proper divisors (1).

57831797 is an equidigital number, since it uses as much as digits as its factorization.

57831797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 47.

The square root of 57831797 is about 7604.7220199032. The cubic root of 57831797 is about 386.7131103382.

The spelling of 57831797 in words is "fifty-seven million, eight hundred thirty-one thousand, seven hundred ninety-seven".