38213979 has 8 divisors (see below), whose sum is σ = 52595712. Its totient is φ = 24654120.

The previous prime is 38213963. The next prime is 38213993. The reversal of 38213979 is 97931283.

38213979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38213979 - 2⁴ = 38213963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38213979.

It is not an unprimeable number, because it can be changed into a prime (38213479) 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 7 ways as a sum of consecutive naturals, for example, 205359 + ... + 205544.

It is an arithmetic number, because the mean of its divisors is an integer number (6574464).

Almost surely, 2^38213979 is an apocalyptic number.

38213979 is a deficient number, since it is larger than the sum of its proper divisors (14381733).

38213979 is a wasteful number, since it uses less digits than its factorization.

38213979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410937.

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

The square root of 38213979 is about 6181.7456272480. The cubic root of 38213979 is about 336.8274056261.

The spelling of 38213979 in words is "thirty-eight million, two hundred thirteen thousand, nine hundred seventy-nine".