8997319253 has 8 divisors (see below), whose sum is σ = 9696955800. Its totient is φ = 8298759168.

The previous prime is 8997319237. The next prime is 8997319291. The reversal of 8997319253 is 3529137998.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1215080164 + 7782239089 = 34858^2 + 88217^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8997319253 - 2⁴ = 8997319237 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 (8997319213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251708 + ... + 285221.

It is an arithmetic number, because the mean of its divisors is an integer number (1212119475).

Almost surely, 2^8997319253 is an apocalyptic number.

It is an amenable number.

8997319253 is a deficient number, since it is larger than the sum of its proper divisors (699636547).

8997319253 is a wasteful number, since it uses less digits than its factorization.

8997319253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538231.

The product of its digits is 3674160, while the sum is 56.

The square root of 8997319253 is about 94854.1999755414. The cubic root of 8997319253 is about 2079.8772774148.

The spelling of 8997319253 in words is "eight billion, nine hundred ninety-seven million, three hundred nineteen thousand, two hundred fifty-three".