57977969 has 4 divisors (see below), whose sum is σ = 66260544. Its totient is φ = 49695396.

The previous prime is 57977923. The next prime is 57977971. The reversal of 57977969 is 96977975.

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 57977969 - 2¹² = 57973873 is a prime.

It is a super-2 number, since 2×57977969² = 6722889778729922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57977069) 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, 4141277 + ... + 4141290.

It is an arithmetic number, because the mean of its divisors is an integer number (16565136).

Almost surely, 2^57977969 is an apocalyptic number.

It is an amenable number.

57977969 is a deficient number, since it is larger than the sum of its proper divisors (8282575).

57977969 is an equidigital number, since it uses as much as digits as its factorization.

57977969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8282574.

The product of its digits is 7501410, while the sum is 59.

The square root of 57977969 is about 7614.3265624742. The cubic root of 57977969 is about 387.0386467736.

The spelling of 57977969 in words is "fifty-seven million, nine hundred seventy-seven thousand, nine hundred sixty-nine".