57342747 has 24 divisors (see below), whose sum is σ = 96049408. Its totient is φ = 29787120.

The previous prime is 57342739. The next prime is 57342757. The reversal of 57342747 is 74724375.

It is not a de Polignac number, because 57342747 - 2³ = 57342739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57342757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8743 + ... + 13824.

Almost surely, 2^57342747 is an apocalyptic number.

57342747 is a deficient number, since it is larger than the sum of its proper divisors (38706661).

57342747 is a wasteful number, since it uses less digits than its factorization.

57342747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22599 (or 22588 counting only the distinct ones).

The product of its digits is 164640, while the sum is 39.

The square root of 57342747 is about 7572.4993892373. The cubic root of 57342747 is about 385.6199535531.

The spelling of 57342747 in words is "fifty-seven million, three hundred forty-two thousand, seven hundred forty-seven".