38939479 has 4 divisors (see below), whose sum is σ = 38953584. Its totient is φ = 38925376.

The previous prime is 38939477. The next prime is 38939491. The reversal of 38939479 is 97493983.

38939479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38939479 - 2¹ = 38939477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38939473) 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 3 ways as a sum of consecutive naturals, for example, 1402 + ... + 8935.

It is an arithmetic number, because the mean of its divisors is an integer number (9738396).

Almost surely, 2^38939479 is an apocalyptic number.

38939479 is a deficient number, since it is larger than the sum of its proper divisors (14105).

38939479 is a wasteful number, since it uses less digits than its factorization.

38939479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14104.

The product of its digits is 1469664, while the sum is 52.

The square root of 38939479 is about 6240.1505590811. The cubic root of 38939479 is about 338.9456351011.

The spelling of 38939479 in words is "thirty-eight million, nine hundred thirty-nine thousand, four hundred seventy-nine".