39680475 has 24 divisors (see below), whose sum is σ = 65851440. Its totient is φ = 21083520.

The previous prime is 39680461. The next prime is 39680477. The reversal of 39680475 is 57408693.

It is a happy number.

It is not a de Polignac number, because 39680475 - 2⁸ = 39680219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39680477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22941 + ... + 24609.

It is an arithmetic number, because the mean of its divisors is an integer number (2743810).

Almost surely, 2^39680475 is an apocalyptic number.

39680475 is a deficient number, since it is larger than the sum of its proper divisors (26170965).

39680475 is a wasteful number, since it uses less digits than its factorization.

39680475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 39680475 is about 6299.2440022593. The cubic root of 39680475 is about 341.0821203252.

The spelling of 39680475 in words is "thirty-nine million, six hundred eighty thousand, four hundred seventy-five".