38979167 has 4 divisors (see below), whose sum is σ = 40032696. Its totient is φ = 37925640.

The previous prime is 38979139. The next prime is 38979169. The reversal of 38979167 is 76197983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76197983 = 3187 ⋅23909.

It is a cyclic number.

It is not a de Polignac number, because 38979167 - 2²² = 34784863 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 (38979169) 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, 526709 + ... + 526782.

It is an arithmetic number, because the mean of its divisors is an integer number (10008174).

Almost surely, 2^38979167 is an apocalyptic number.

38979167 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

38979167 is a deficient number, since it is larger than the sum of its proper divisors (1053529).

38979167 is a wasteful number, since it uses less digits than its factorization.

38979167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053528.

The product of its digits is 571536, while the sum is 50.

The square root of 38979167 is about 6243.3298006753. The cubic root of 38979167 is about 339.0607496933.

The spelling of 38979167 in words is "thirty-eight million, nine hundred seventy-nine thousand, one hundred sixty-seven".