799928089 has 3 divisors (see below), whose sum is σ = 799956373. Its totient is φ = 799899806.

The previous prime is 799928023. The next prime is 799928111. The reversal of 799928089 is 980829997.

The square root of 799928089 is 28283.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 799928089 - 2¹⁵ = 799895321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799928189) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14142 + ... + 42424.

Almost surely, 2^799928089 is an apocalyptic number.

799928089 is the 28283-rd square number.

799928089 is the 14142-nd centered octagonal number.

It is an amenable number.

799928089 is a deficient number, since it is larger than the sum of its proper divisors (28284).

799928089 is an frugal number, since it uses more digits than its factorization.

799928089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56566 (or 28283 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 61.

The cubic root of 799928089 is about 928.2899507812.

The spelling of 799928089 in words is "seven hundred ninety-nine million, nine hundred twenty-eight thousand, eighty-nine".