57409707 has 4 divisors (see below), whose sum is σ = 76546280. Its totient is φ = 38273136.

The previous prime is 57409691. The next prime is 57409721. The reversal of 57409707 is 70790475.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57409707 - 2⁴ = 57409691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57409727) 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 3 ways as a sum of consecutive naturals, for example, 9568282 + ... + 9568287.

It is an arithmetic number, because the mean of its divisors is an integer number (19136570).

Almost surely, 2^57409707 is an apocalyptic number.

57409707 is a deficient number, since it is larger than the sum of its proper divisors (19136573).

57409707 is a wasteful number, since it uses less digits than its factorization.

57409707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19136572.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 57409707 is about 7576.9193607957. The cubic root of 57409707 is about 385.7699932669.

The spelling of 57409707 in words is "fifty-seven million, four hundred nine thousand, seven hundred seven".