992879 has 4 divisors (see below), whose sum is σ = 996840. Its totient is φ = 988920.

The previous prime is 992867. The next prime is 992891. The reversal of 992879 is 978299.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (992867) and next prime (992891).

It is a cyclic number.

It is not a de Polignac number, because 992879 - 2⁴ = 992863 is a prime.

It is a super-5 number, since 5×992879⁵ (a number of 31 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992809) by changing a digit.

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, 1577 + ... + 2114.

It is an arithmetic number, because the mean of its divisors is an integer number (249210).

2⁹⁹²⁸⁷⁹ is an apocalyptic number.

992879 is a deficient number, since it is larger than the sum of its proper divisors (3961).

992879 is a wasteful number, since it uses less digits than its factorization.

992879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960.

The product of its digits is 81648, while the sum is 44.

The square root of 992879 is about 996.4331387504. The cubic root of 992879 is about 99.7620676644.

The spelling of 992879 in words is "nine hundred ninety-two thousand, eight hundred seventy-nine".