8997669590 has 192 divisors, whose sum is σ = 21023380224. Its totient is φ = 2746420992.

The previous prime is 8997669581. The next prime is 8997669599. The reversal of 8997669590 is 959667998.

It is an interprime number because it is at equal distance from previous prime (8997669581) and next prime (8997669599).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8997669590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8997669599) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29308217 + ... + 29308523.

It is an arithmetic number, because the mean of its divisors is an integer number (109496772).

Almost surely, 2^8997669590 is an apocalyptic number.

8997669590 is an abundant number, since it is smaller than the sum of its proper divisors (12025710634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8997669590 is a wasteful number, since it uses less digits than its factorization.

8997669590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 68.

The square root of 8997669590 is about 94856.0466707315. The cubic root of 8997669590 is about 2079.9042724374.

The spelling of 8997669590 in words is "eight billion, nine hundred ninety-seven million, six hundred sixty-nine thousand, five hundred ninety".