57706939 has 4 divisors (see below), whose sum is σ = 59266624. Its totient is φ = 56147256.

The previous prime is 57706927. The next prime is 57706951. The reversal of 57706939 is 93960775.

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

It is an interprime number because it is at equal distance from previous prime (57706927) and next prime (57706951).

It is a cyclic number.

It is not a de Polignac number, because 57706939 - 2⁵ = 57706907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57706969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779787 + ... + 779860.

It is an arithmetic number, because the mean of its divisors is an integer number (14816656).

Almost surely, 2^57706939 is an apocalyptic number.

57706939 is a deficient number, since it is larger than the sum of its proper divisors (1559685).

57706939 is a wasteful number, since it uses less digits than its factorization.

57706939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559684.

The product of its (nonzero) digits is 357210, while the sum is 46.

The square root of 57706939 is about 7596.5083426532. The cubic root of 57706939 is about 386.4346071728.

The spelling of 57706939 in words is "fifty-seven million, seven hundred six thousand, nine hundred thirty-nine".