57948879 has 16 divisors (see below), whose sum is σ = 82252800. Its totient is φ = 36184896.

The previous prime is 57948871. The next prime is 57948887. The reversal of 57948879 is 97884975.

It is an interprime number because it is at equal distance from previous prime (57948871) and next prime (57948887).

It is not a de Polignac number, because 57948879 - 2³ = 57948871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57948871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639 + ... + 10784.

It is an arithmetic number, because the mean of its divisors is an integer number (5140800).

Almost surely, 2^57948879 is an apocalyptic number.

57948879 is a deficient number, since it is larger than the sum of its proper divisors (24303921).

57948879 is a wasteful number, since it uses less digits than its factorization.

57948879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11534.

The product of its digits is 5080320, while the sum is 57.

The square root of 57948879 is about 7612.4161079121. The cubic root of 57948879 is about 386.9739047231.

The spelling of 57948879 in words is "fifty-seven million, nine hundred forty-eight thousand, eight hundred seventy-nine".