8899397309 has 4 divisors (see below), whose sum is σ = 9708433440. Its totient is φ = 8090361180.

The previous prime is 8899397281. The next prime is 8899397317. The reversal of 8899397309 is 9037939988.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8899397309 - 2¹⁶ = 8899331773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8899396309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404518049 + ... + 404518070.

It is an arithmetic number, because the mean of its divisors is an integer number (2427108360).

Almost surely, 2^8899397309 is an apocalyptic number.

It is an amenable number.

8899397309 is a deficient number, since it is larger than the sum of its proper divisors (809036131).

8899397309 is a wasteful number, since it uses less digits than its factorization.

8899397309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809036130.

The product of its (nonzero) digits is 26453952, while the sum is 65.

The square root of 8899397309 is about 94336.6170105755. The cubic root of 8899397309 is about 2072.3043184507.

The spelling of 8899397309 in words is "eight billion, eight hundred ninety-nine million, three hundred ninety-seven thousand, three hundred nine".