38772839 has 16 divisors (see below), whose sum is σ = 46267200. Its totient is φ = 31799040.

The previous prime is 38772829. The next prime is 38772857. The reversal of 38772839 is 93827783.

It is a happy number.

38772839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38772839 - 2⁴ = 38772823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38772793 and 38772802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38772829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13937 + ... + 16485.

It is an arithmetic number, because the mean of its divisors is an integer number (2891700).

Almost surely, 2^38772839 is an apocalyptic number.

38772839 is a deficient number, since it is larger than the sum of its proper divisors (7494361).

38772839 is a wasteful number, since it uses less digits than its factorization.

38772839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650.

The product of its digits is 508032, while the sum is 47.

The square root of 38772839 is about 6226.7840013927. The cubic root of 38772839 is about 338.4614421527.

The spelling of 38772839 in words is "thirty-eight million, seven hundred seventy-two thousand, eight hundred thirty-nine".