799985880 has 384 divisors, whose sum is σ = 2934360000. Its totient is φ = 188116992.

The previous prime is 799985863. The next prime is 799985929. The reversal of 799985880 is 88589997.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7339266 + ... + 7339374.

Almost surely, 2^799985880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799985880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467180000).

799985880 is an abundant number, since it is smaller than the sum of its proper divisors (2134374120).

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

799985880 is a wasteful number, since it uses less digits than its factorization.

799985880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 63.

The square root of 799985880 is about 28284.0216376667. The cubic root of 799985880 is about 928.3123050876.

The spelling of 799985880 in words is "seven hundred ninety-nine million, nine hundred eighty-five thousand, eight hundred eighty".