979764 has 12 divisors (see below), whose sum is σ = 2286144. Its totient is φ = 326584.

The previous prime is 979757. The next prime is 979787. The reversal of 979764 is 467979.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979764.

It is an unprimeable number.

979764 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40812 + ... + 40835.

It is an arithmetic number, because the mean of its divisors is an integer number (190512).

2⁹⁷⁹⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

979764 is an abundant number, since it is smaller than the sum of its proper divisors (1306380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

979764 is a wasteful number, since it uses less digits than its factorization.

979764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81654 (or 81652 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 979764 is about 989.8302884838. The cubic root of 979764 is about 99.3208648624.

The spelling of 979764 in words is "nine hundred seventy-nine thousand, seven hundred sixty-four".