57378727 has 32 divisors (see below), whose sum is σ = 72089600. Its totient is φ = 44579808.

The previous prime is 57378709. The next prime is 57378731. The reversal of 57378727 is 72787375.

It is not a de Polignac number, because 57378727 - 2¹⁹ = 56854439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57378787) 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, 451738 + ... + 451864.

It is an arithmetic number, because the mean of its divisors is an integer number (2252800).

Almost surely, 2^57378727 is an apocalyptic number.

57378727 is a deficient number, since it is larger than the sum of its proper divisors (14710873).

57378727 is a wasteful number, since it uses less digits than its factorization.

57378727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275.

The product of its digits is 576240, while the sum is 46.

The square root of 57378727 is about 7574.8747184359. The cubic root of 57378727 is about 385.7005897613.

The spelling of 57378727 in words is "fifty-seven million, three hundred seventy-eight thousand, seven hundred twenty-seven".