8938193979 has 32 divisors (see below), whose sum is σ = 14041440000. Its totient is φ = 4985976960.

The previous prime is 8938193963. The next prime is 8938193983. The reversal of 8938193979 is 9793918398.

It is not a de Polignac number, because 8938193979 - 2⁴ = 8938193963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8938193179) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119872 + ... + 179570.

It is an arithmetic number, because the mean of its divisors is an integer number (438795000).

Almost surely, 2^8938193979 is an apocalyptic number.

8938193979 is a deficient number, since it is larger than the sum of its proper divisors (5103246021).

8938193979 is a wasteful number, since it uses less digits than its factorization.

8938193979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60075.

The product of its digits is 26453952, while the sum is 66.

The square root of 8938193979 is about 94542.0222916773. The cubic root of 8938193979 is about 2075.3113369585.

It can be divided in two parts, 893819 and 3979, that added together give a palindrome (897798).

The spelling of 8938193979 in words is "eight billion, nine hundred thirty-eight million, one hundred ninety-three thousand, nine hundred seventy-nine".