38936739 has 4 divisors (see below), whose sum is σ = 51915656. Its totient is φ = 25957824.

The previous prime is 38936731. The next prime is 38936741. The reversal of 38936739 is 93763983.

It is a happy number.

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

It is not a de Polignac number, because 38936739 - 2³ = 38936731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38936731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6489454 + ... + 6489459.

It is an arithmetic number, because the mean of its divisors is an integer number (12978914).

Almost surely, 2^38936739 is an apocalyptic number.

38936739 is a deficient number, since it is larger than the sum of its proper divisors (12978917).

38936739 is a wasteful number, since it uses less digits than its factorization.

38936739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12978916.

The product of its digits is 734832, while the sum is 48.

The square root of 38936739 is about 6239.9310092340. The cubic root of 38936739 is about 338.9376848764.

It can be divided in two parts, 389 and 36739, that added together give a triangular number (37128 = T₂₇₂).

The spelling of 38936739 in words is "thirty-eight million, nine hundred thirty-six thousand, seven hundred thirty-nine".