57684905 has 8 divisors (see below), whose sum is σ = 70000200. Its totient is φ = 45629056.

The previous prime is 57684883. The next prime is 57684911. The reversal of 57684905 is 50948675.

57684905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1194649 + 56490256 = 1093^2 + 7516^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57684905 - 2¹⁶ = 57619369 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64370 + ... + 65259.

It is an arithmetic number, because the mean of its divisors is an integer number (8750025).

Almost surely, 2^57684905 is an apocalyptic number.

It is an amenable number.

57684905 is a deficient number, since it is larger than the sum of its proper divisors (12315295).

57684905 is a wasteful number, since it uses less digits than its factorization.

57684905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129723.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 57684905 is about 7595.0579326296. The cubic root of 57684905 is about 386.3854173398.

The spelling of 57684905 in words is "fifty-seven million, six hundred eighty-four thousand, nine hundred five".