38903899 has 4 divisors (see below), whose sum is σ = 38932920. Its totient is φ = 38874880.

The previous prime is 38903897. The next prime is 38903933. The reversal of 38903899 is 99830983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38903899 - 2¹ = 38903897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38903897) 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 3 ways as a sum of consecutive naturals, for example, 12397 + ... + 15214.

It is an arithmetic number, because the mean of its divisors is an integer number (9733230).

Almost surely, 2^38903899 is an apocalyptic number.

38903899 is a deficient number, since it is larger than the sum of its proper divisors (29021).

38903899 is a wasteful number, since it uses less digits than its factorization.

38903899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29020.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 38903899 is about 6237.2990147980. The cubic root of 38903899 is about 338.8423692045.

The spelling of 38903899 in words is "thirty-eight million, nine hundred three thousand, eight hundred ninety-nine".