39712086 has 32 divisors (see below), whose sum is σ = 90132480. Its totient is φ = 12954888.

The previous prime is 39712081. The next prime is 39712093. The reversal of 39712086 is 68021793.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39712086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39712081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5286 + ... + 10361.

It is an arithmetic number, because the mean of its divisors is an integer number (2816640).

Almost surely, 2^39712086 is an apocalyptic number.

39712086 is an abundant number, since it is smaller than the sum of its proper divisors (50420394).

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

39712086 is a wasteful number, since it uses less digits than its factorization.

39712086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15705 (or 15699 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 39712086 is about 6301.7526133608. The cubic root of 39712086 is about 341.1726693510.

The spelling of 39712086 in words is "thirty-nine million, seven hundred twelve thousand, eighty-six".