979697212 has 12 divisors (see below), whose sum is σ = 1846352536. Its totient is φ = 452167920.

The previous prime is 979697153. The next prime is 979697219. The reversal of 979697212 is 212796979.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 18840331 = 979697212 / (9 + 7 + 9 + 6 + 9 + 7 + 2 + 1 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 979697212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979697219) 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, 9420114 + ... + 9420217.

Almost surely, 2^979697212 is an apocalyptic number.

It is an amenable number.

979697212 is a deficient number, since it is larger than the sum of its proper divisors (866655324).

979697212 is a wasteful number, since it uses less digits than its factorization.

979697212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18840348 (or 18840346 counting only the distinct ones).

The product of its digits is 857304, while the sum is 52.

The square root of 979697212 is about 31300.1152074557. The cubic root of 979697212 is about 993.1860799492.

The spelling of 979697212 in words is "nine hundred seventy-nine million, six hundred ninety-seven thousand, two hundred twelve".