39971486 has 8 divisors (see below), whose sum is σ = 60169944. Its totient is φ = 19914840.

The previous prime is 39971473. The next prime is 39971513. The reversal of 39971486 is 68417993.

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

It is a self number, because there is not a number n which added to its sum of digits gives 39971486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34745 + ... + 35876.

It is an arithmetic number, because the mean of its divisors is an integer number (7521243).

Almost surely, 2^39971486 is an apocalyptic number.

39971486 is a deficient number, since it is larger than the sum of its proper divisors (20198458).

39971486 is a wasteful number, since it uses less digits than its factorization.

39971486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70906.

The product of its digits is 326592, while the sum is 47.

The square root of 39971486 is about 6322.3006888316. The cubic root of 39971486 is about 341.9139062612.

The spelling of 39971486 in words is "thirty-nine million, nine hundred seventy-one thousand, four hundred eighty-six".