979638101 has 16 divisors (see below), whose sum is σ = 1074649968. Its totient is φ = 887500800.

The previous prime is 979638059. The next prime is 979638109. The reversal of 979638101 is 101836979.

979638101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 18576100 + 961062001 = 4310^2 + 31001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-979638101 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 (979638109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456491 + ... + 458631.

It is an arithmetic number, because the mean of its divisors is an integer number (67165623).

Almost surely, 2^979638101 is an apocalyptic number.

It is an amenable number.

979638101 is a deficient number, since it is larger than the sum of its proper divisors (95011867).

979638101 is a wasteful number, since it uses less digits than its factorization.

979638101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 979638101 is about 31299.1709315119. The cubic root of 979638101 is about 993.1661045927.

The spelling of 979638101 in words is "nine hundred seventy-nine million, six hundred thirty-eight thousand, one hundred one".