979798 has 8 divisors (see below), whose sum is σ = 1504008. Its totient is φ = 478464.

The previous prime is 979787. The next prime is 979807. The reversal of 979798 is 897979.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5611 + ... + 5782.

It is an arithmetic number, because the mean of its divisors is an integer number (188001).

2⁹⁷⁹⁷⁹⁸ is an apocalyptic number.

979798 is a deficient number, since it is larger than the sum of its proper divisors (524210).

979798 is a wasteful number, since it uses less digits than its factorization.

979798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11438.

The product of its digits is 285768, while the sum is 49.

The square root of 979798 is about 989.8474629962. The cubic root of 979798 is about 99.3220137345.

The spelling of 979798 in words is "nine hundred seventy-nine thousand, seven hundred ninety-eight".