57921417 has 6 divisors (see below), whose sum is σ = 83664282. Its totient is φ = 38614272.

The previous prime is 57921407. The next prime is 57921463. The reversal of 57921417 is 71412975.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56115081 + 1806336 = 7491^2 + 1344^2 .

It is not a de Polignac number, because 57921417 - 2¹⁰ = 57920393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57921407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3217848 + ... + 3217865.

It is an arithmetic number, because the mean of its divisors is an integer number (13944047).

Almost surely, 2^57921417 is an apocalyptic number.

It is an amenable number.

57921417 is a deficient number, since it is larger than the sum of its proper divisors (25742865).

57921417 is a wasteful number, since it uses less digits than its factorization.

57921417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435719 (or 6435716 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 57921417 is about 7610.6121304400. The cubic root of 57921417 is about 386.9127660280.

The spelling of 57921417 in words is "fifty-seven million, nine hundred twenty-one thousand, four hundred seventeen".