979787979 has 48 divisors (see below), whose sum is σ = 1530573408. Its totient is φ = 601767936.

The previous prime is 979787959. The next prime is 979787987.

979787979 is nontrivially palindromic in base 10.

979787979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 979787979 - 2¹⁵ = 979755211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (979787959) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1587679 + ... + 1588295.

It is an arithmetic number, because the mean of its divisors is an integer number (31886946).

Almost surely, 2^979787979 is an apocalyptic number.

979787979 is a deficient number, since it is larger than the sum of its proper divisors (550785429).

979787979 is a wasteful number, since it uses less digits than its factorization.

979787979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 841 counting only the distinct ones).

The product of its digits is 126023688, while the sum is 72.

The square root of 979787979 is about 31301.5651206134. The cubic root of 979787979 is about 993.2167512409.

The spelling of 979787979 in words is "nine hundred seventy-nine million, seven hundred eighty-seven thousand, nine hundred seventy-nine".