57998977 has 4 divisors (see below), whose sum is σ = 58815936. Its totient is φ = 57182020.

The previous prime is 57998971. The next prime is 57998981. The reversal of 57998977 is 77989975.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57998977 - 2¹⁹ = 57474689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57998971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408373 + ... + 408514.

It is an arithmetic number, because the mean of its divisors is an integer number (14703984).

Almost surely, 2^57998977 is an apocalyptic number.

It is an amenable number.

57998977 is a deficient number, since it is larger than the sum of its proper divisors (816959).

57998977 is an equidigital number, since it uses as much as digits as its factorization.

57998977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816958.

The product of its digits is 10001880, while the sum is 61.

The square root of 57998977 is about 7615.7059423273. The cubic root of 57998977 is about 387.0853882409.

The spelling of 57998977 in words is "fifty-seven million, nine hundred ninety-eight thousand, nine hundred seventy-seven".