57868397 has 2 divisors, whose sum is σ = 57868398. Its totient is φ = 57868396.

The previous prime is 57868367. The next prime is 57868403. The reversal of 57868397 is 79386875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57851236 + 17161 = 7606^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 57868397 - 2¹⁰ = 57867373 is a prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57868367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28934198 + 28934199.

It is an arithmetic number, because the mean of its divisors is an integer number (28934199).

Almost surely, 2^57868397 is an apocalyptic number.

It is an amenable number.

57868397 is a deficient number, since it is larger than the sum of its proper divisors (1).

57868397 is an equidigital number, since it uses as much as digits as its factorization.

57868397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 53.

The square root of 57868397 is about 7607.1280388856. The cubic root of 57868397 is about 386.7946728223.

The spelling of 57868397 in words is "fifty-seven million, eight hundred sixty-eight thousand, three hundred ninety-seven".