8813399825 has 6 divisors (see below), whose sum is σ = 10928615814. Its totient is φ = 7050719840.

The previous prime is 8813399813. The next prime is 8813399863. The reversal of 8813399825 is 5289933188.

It can be written as a sum of positive squares in 3 ways, for example, as 31460881 + 8781938944 = 5609^2 + 93712^2 .

It is not a de Polignac number, because 8813399825 - 2¹² = 8813395729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176267972 + ... + 176268021.

It is an arithmetic number, because the mean of its divisors is an integer number (1821435969).

Almost surely, 2^8813399825 is an apocalyptic number.

It is an amenable number.

8813399825 is a deficient number, since it is larger than the sum of its proper divisors (2115215989).

8813399825 is a wasteful number, since it uses less digits than its factorization.

8813399825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352536003 (or 352535998 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 56.

The square root of 8813399825 is about 93879.7093359369. The cubic root of 8813399825 is about 2065.6076065147.

The spelling of 8813399825 in words is "eight billion, eight hundred thirteen million, three hundred ninety-nine thousand, eight hundred twenty-five".