39788975 has 12 divisors (see below), whose sum is σ = 50487096. Its totient is φ = 31090080.

The previous prime is 39788971. The next prime is 39788999. The reversal of 39788975 is 57988793.

It is not a de Polignac number, because 39788975 - 2² = 39788971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39788975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39788971) 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, 17432 + ... + 19581.

It is an arithmetic number, because the mean of its divisors is an integer number (4207258).

Almost surely, 2^39788975 is an apocalyptic number.

39788975 is a deficient number, since it is larger than the sum of its proper divisors (10698121).

39788975 is a wasteful number, since it uses less digits than its factorization.

39788975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37066 (or 37061 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 56.

The square root of 39788975 is about 6307.8502677220. The cubic root of 39788975 is about 341.3927158249.

It can be divided in two parts, 397889 and 75, that multiplied together give a triangular number (29841675 = T₇₇₂₅).

The spelling of 39788975 in words is "thirty-nine million, seven hundred eighty-eight thousand, nine hundred seventy-five".