39999475 has 12 divisors (see below), whose sum is σ = 49681840. Its totient is φ = 31946400.

The previous prime is 39999473. The next prime is 39999499. The reversal of 39999475 is 57499993.

It is not a de Polignac number, because 39999475 - 2¹ = 39999473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39999473) 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, 22105 + ... + 23845.

Almost surely, 2^39999475 is an apocalyptic number.

39999475 is a deficient number, since it is larger than the sum of its proper divisors (9682365).

39999475 is a wasteful number, since it uses less digits than its factorization.

39999475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670 (or 2665 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 55.

The square root of 39999475 is about 6324.5138153063. The cubic root of 39999475 is about 341.9936930998.

The spelling of 39999475 in words is "thirty-nine million, nine hundred ninety-nine thousand, four hundred seventy-five".