57921696 has 192 divisors, whose sum is σ = 197487360. Its totient is φ = 16174080.

The previous prime is 57921691. The next prime is 57921697. The reversal of 57921696 is 69612975.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57921691) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368850 + ... + 369006.

It is an arithmetic number, because the mean of its divisors is an integer number (1028580).

Almost surely, 2^57921696 is an apocalyptic number.

57921696 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57921696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98743680).

57921696 is an abundant number, since it is smaller than the sum of its proper divisors (139565664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57921696 is a wasteful number, since it uses less digits than its factorization.

57921696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 230 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 57921696 is about 7610.6304600867. The cubic root of 57921696 is about 386.9133872633.

The spelling of 57921696 in words is "fifty-seven million, nine hundred twenty-one thousand, six hundred ninety-six".