793998990 has 64 divisors (see below), whose sum is σ = 2153260800. Its totient is φ = 208140192.

The previous prime is 793998983. The next prime is 793999009. The reversal of 793998990 is 99899397.

It is a super-2 number, since 2×793998990² = 1260868792242040200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8992 + ... + 40851.

It is an arithmetic number, because the mean of its divisors is an integer number (33644700).

Almost surely, 2^793998990 is an apocalyptic number.

793998990 is an abundant number, since it is smaller than the sum of its proper divisors (1359261810).

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

793998990 is a wasteful number, since it uses less digits than its factorization.

793998990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49918 (or 49912 counting only the distinct ones).

The product of its (nonzero) digits is 9920232, while the sum is 63.

The square root of 793998990 is about 28177.9876854257. The cubic root of 793998990 is about 925.9907533904.

It can be divided in two parts, 7939 and 98990, that added together give a square (106929 = 327²).

The spelling of 793998990 in words is "seven hundred ninety-three million, nine hundred ninety-eight thousand, nine hundred ninety".