57997943 has 2 divisors, whose sum is σ = 57997944. Its totient is φ = 57997942.

The previous prime is 57997939. The next prime is 57997987. The reversal of 57997943 is 34979975.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57997943 - 2² = 57997939 is a prime.

It is a super-2 number, since 2×57997943² = 6727522784462498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57997243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28998971 + 28998972.

It is an arithmetic number, because the mean of its divisors is an integer number (28998972).

Almost surely, 2^57997943 is an apocalyptic number.

57997943 is a deficient number, since it is larger than the sum of its proper divisors (1).

57997943 is an equidigital number, since it uses as much as digits as its factorization.

57997943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2143260, while the sum is 53.

The square root of 57997943 is about 7615.6380560003. The cubic root of 57997943 is about 387.0830879206.

The spelling of 57997943 in words is "fifty-seven million, nine hundred ninety-seven thousand, nine hundred forty-three".