39903399 has 12 divisors (see below), whose sum is σ = 57720936. Its totient is φ = 26564112.

The previous prime is 39903389. The next prime is 39903419. The reversal of 39903399 is 99330993.

It is not a de Polignac number, because 39903399 - 2⁷ = 39903271 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39903359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4392 + ... + 9954.

It is an arithmetic number, because the mean of its divisors is an integer number (4810078).

Almost surely, 2^39903399 is an apocalyptic number.

39903399 is a deficient number, since it is larger than the sum of its proper divisors (17817537).

39903399 is a wasteful number, since it uses less digits than its factorization.

39903399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6366 (or 6363 counting only the distinct ones).

The product of its (nonzero) digits is 177147, while the sum is 45.

The square root of 39903399 is about 6316.9137242802. The cubic root of 39903399 is about 341.7196584341.

The spelling of 39903399 in words is "thirty-nine million, nine hundred three thousand, three hundred ninety-nine".