57697739 has 8 divisors (see below), whose sum is σ = 63243840. Its totient is φ = 52201800.

The previous prime is 57697723. The next prime is 57697747. The reversal of 57697739 is 93779675.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57697739 - 2⁴ = 57697723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57697709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10109 + ... + 14750.

It is an arithmetic number, because the mean of its divisors is an integer number (7905480).

Almost surely, 2^57697739 is an apocalyptic number.

57697739 is a deficient number, since it is larger than the sum of its proper divisors (5546101).

57697739 is a wasteful number, since it uses less digits than its factorization.

57697739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25081.

The product of its digits is 2500470, while the sum is 53.

The square root of 57697739 is about 7595.9027771556. The cubic root of 57697739 is about 386.4140701432.

It can be divided in two parts, 57 and 697739, that added together give a palindrome (697796).

The spelling of 57697739 in words is "fifty-seven million, six hundred ninety-seven thousand, seven hundred thirty-nine".