57278793 has 64 divisors (see below), whose sum is σ = 95477760. Its totient is φ = 30067200.

The previous prime is 57278783. The next prime is 57278803. The reversal of 57278793 is 39787275.

It is an interprime number because it is at equal distance from previous prime (57278783) and next prime (57278803).

It is not a de Polignac number, because 57278793 - 2⁴ = 57278777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57278773) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 784605 + ... + 784677.

It is an arithmetic number, because the mean of its divisors is an integer number (1491840).

Almost surely, 2^57278793 is an apocalyptic number.

It is an amenable number.

57278793 is a deficient number, since it is larger than the sum of its proper divisors (38198967).

57278793 is a wasteful number, since it uses less digits than its factorization.

57278793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its digits is 740880, while the sum is 48.

The square root of 57278793 is about 7568.2754310345. The cubic root of 57278793 is about 385.4765403991.

The spelling of 57278793 in words is "fifty-seven million, two hundred seventy-eight thousand, seven hundred ninety-three".