39713688 has 48 divisors (see below), whose sum is σ = 122924880. Its totient is φ = 11346624.

The previous prime is 39713677. The next prime is 39713689. The reversal of 39713688 is 88631793.

It is a happy number.

It is a super-2 number, since 2×39713688² = 3154354029122688, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39713689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38895 + ... + 39902.

It is an arithmetic number, because the mean of its divisors is an integer number (2560935).

Almost surely, 2^39713688 is an apocalyptic number.

It is an amenable number.

39713688 is an abundant number, since it is smaller than the sum of its proper divisors (83211192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39713688 is a wasteful number, since it uses less digits than its factorization.

39713688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78816 (or 78809 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 39713688 is about 6301.8797195757. The cubic root of 39713688 is about 341.1772569658.

It can be divided in two parts, 39713 and 688, that added together give a square (40401 = 201²).

The spelling of 39713688 in words is "thirty-nine million, seven hundred thirteen thousand, six hundred eighty-eight".