57693729 has 16 divisors (see below), whose sum is σ = 80446464. Its totient is φ = 36709200.

The previous prime is 57693707. The next prime is 57693737. The reversal of 57693729 is 92739675.

It is not a de Polignac number, because 57693729 - 2¹⁷ = 57562657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57691729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55444 + ... + 56474.

It is an arithmetic number, because the mean of its divisors is an integer number (5027904).

Almost surely, 2^57693729 is an apocalyptic number.

It is an amenable number.

57693729 is a deficient number, since it is larger than the sum of its proper divisors (22752735).

57693729 is a wasteful number, since it uses less digits than its factorization.

57693729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868.

The product of its digits is 714420, while the sum is 48.

The square root of 57693729 is about 7595.6388144777. The cubic root of 57693729 is about 386.4051179939.

The spelling of 57693729 in words is "fifty-seven million, six hundred ninety-three thousand, seven hundred twenty-nine".