38979123 has 4 divisors (see below), whose sum is σ = 51972168. Its totient is φ = 25986080.

The previous prime is 38979097. The next prime is 38979131. The reversal of 38979123 is 32197983.

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 38979123 - 2⁵ = 38979091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38979133) 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, 6496518 + ... + 6496523.

It is an arithmetic number, because the mean of its divisors is an integer number (12993042).

Almost surely, 2^38979123 is an apocalyptic number.

38979123 is a deficient number, since it is larger than the sum of its proper divisors (12993045).

38979123 is a wasteful number, since it uses less digits than its factorization.

38979123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993044.

The product of its digits is 81648, while the sum is 42.

The square root of 38979123 is about 6243.3262769136. The cubic root of 38979123 is about 339.0606221151.

The spelling of 38979123 in words is "thirty-eight million, nine hundred seventy-nine thousand, one hundred twenty-three".