979816 has 8 divisors (see below), whose sum is σ = 1837170. Its totient is φ = 489904.

The previous prime is 979807. The next prime is 979819. The reversal of 979816 is 618979.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 417316 = 750^2 + 646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (979819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61231 + ... + 61246.

2⁹⁷⁹⁸¹⁶ is an apocalyptic number.

It is an amenable number.

979816 is a deficient number, since it is larger than the sum of its proper divisors (857354).

979816 is a wasteful number, since it uses less digits than its factorization.

979816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122483 (or 122479 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 979816 is about 989.8565552644. The cubic root of 979816 is about 99.3226219501.

The spelling of 979816 in words is "nine hundred seventy-nine thousand, eight hundred sixteen".