799023289 has 9 divisors (see below), whose sum is σ = 835954063. Its totient is φ = 763661272.

The previous prime is 799023287. The next prime is 799023317. The reversal of 799023289 is 982320997.

The square root of 799023289 is 28267.

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

It can be written as a sum of positive squares in only one way, i.e., 788654889 + 10368400 = 28083^2 + 3220^2 .

It is not a de Polignac number, because 799023289 - 2¹ = 799023287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (799023287) 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 8 ways as a sum of consecutive naturals, for example, 649527 + ... + 650755.

Almost surely, 2^799023289 is an apocalyptic number.

799023289 is the 28267-th square number.

799023289 is the 14134-th centered octagonal number.

It is an amenable number.

799023289 is a deficient number, since it is larger than the sum of its proper divisors (36930774).

799023289 is an frugal number, since it uses more digits than its factorization.

799023289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The cubic root of 799023289 is about 927.9398219654.

Multiplying 799023289 by its sum of digits (49), we get a square (39152141161 = 197869²).

The spelling of 799023289 in words is "seven hundred ninety-nine million, twenty-three thousand, two hundred eighty-nine".