57069784 has 16 divisors (see below), whose sum is σ = 107989200. Its totient is φ = 28272672.

The previous prime is 57069781. The next prime is 57069809. The reversal of 57069784 is 48796075.

It is a happy number.

57069784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57069781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31852 + ... + 33595.

It is an arithmetic number, because the mean of its divisors is an integer number (6749325).

Almost surely, 2^57069784 is an apocalyptic number.

It is an amenable number.

57069784 is a deficient number, since it is larger than the sum of its proper divisors (50919416).

57069784 is a wasteful number, since it uses less digits than its factorization.

57069784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65562 (or 65558 counting only the distinct ones).

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

The square root of 57069784 is about 7554.4545799151. The cubic root of 57069784 is about 385.0071039337.

The spelling of 57069784 in words is "fifty-seven million, sixty-nine thousand, seven hundred eighty-four".