979636438 has 12 divisors (see below), whose sum is σ = 1603281708. Its totient is φ = 445222560.

The previous prime is 979636423. The next prime is 979636451. The reversal of 979636438 is 834636979.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 143470 + ... + 150142.

It is an arithmetic number, because the mean of its divisors is an integer number (133606809).

Almost surely, 2^979636438 is an apocalyptic number.

979636438 is a deficient number, since it is larger than the sum of its proper divisors (623645270).

979636438 is an frugal number, since it uses more digits than its factorization.

979636438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13359 (or 6686 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 55.

The square root of 979636438 is about 31299.1443653017. The cubic root of 979636438 is about 993.1655426042.

It can be divided in two parts, 97963 and 6438, that added together give a palindrome (104401).

The spelling of 979636438 in words is "nine hundred seventy-nine million, six hundred thirty-six thousand, four hundred thirty-eight".