979901801 has 4 divisors (see below), whose sum is σ = 1031475600. Its totient is φ = 928328004.

The previous prime is 979901753. The next prime is 979901803. The reversal of 979901801 is 108109979.

979901801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 979901801 - 2⁶ = 979901737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979901803) 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, 25786871 + ... + 25786908.

It is an arithmetic number, because the mean of its divisors is an integer number (257868900).

Almost surely, 2^979901801 is an apocalyptic number.

It is an amenable number.

979901801 is a deficient number, since it is larger than the sum of its proper divisors (51573799).

979901801 is a wasteful number, since it uses less digits than its factorization.

979901801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51573798.

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 979901801 is about 31303.3832197097. The cubic root of 979901801 is about 993.2552104253.

The spelling of 979901801 in words is "nine hundred seventy-nine million, nine hundred one thousand, eight hundred one".