798990 has 16 divisors (see below), whose sum is σ = 1917648. Its totient is φ = 213056.

The previous prime is 798961. The next prime is 799003. The reversal of 798990 is 99897.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13287 + ... + 13346.

It is an arithmetic number, because the mean of its divisors is an integer number (119853).

2⁷⁹⁸⁹⁹⁰ is an apocalyptic number.

798990 is an abundant number, since it is smaller than the sum of its proper divisors (1118658).

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

798990 is a wasteful number, since it uses less digits than its factorization.

798990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26643.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 798990 is about 893.8624055189. The cubic root of 798990 is about 92.7926935141.

The spelling of 798990 in words is "seven hundred ninety-eight thousand, nine hundred ninety".