57690784 has 12 divisors (see below), whose sum is σ = 113578794. Its totient is φ = 28845376.

The previous prime is 57690781. The next prime is 57690793. The reversal of 57690784 is 48709675.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 55651600 + 2039184 = 7460^2 + 1428^2 .

It is not an unprimeable number, because it can be changed into a prime (57690781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901387 + ... + 901450.

Almost surely, 2^57690784 is an apocalyptic number.

It is an amenable number.

57690784 is a deficient number, since it is larger than the sum of its proper divisors (55888010).

57690784 is a wasteful number, since it uses less digits than its factorization.

57690784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802847 (or 1802839 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 57690784 is about 7595.4449507583. Note that the first 3 decimals coincide. The cubic root of 57690784 is about 386.3985431463.

The spelling of 57690784 in words is "fifty-seven million, six hundred ninety thousand, seven hundred eighty-four".