8997660 has 144 divisors (see below), whose sum is σ = 32200896. Its totient is φ = 1990656.

The previous prime is 8997649. The next prime is 8997661. The reversal of 8997660 is 667998.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8997661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46524 + ... + 46716.

Almost surely, 2^8997660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8997660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16100448).

8997660 is an abundant number, since it is smaller than the sum of its proper divisors (23203236).

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

8997660 is a wasteful number, since it uses less digits than its factorization.

8997660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 8997660 is about 2999.6099746467. The cubic root of 8997660 is about 207.9903533495.

The spelling of 8997660 in words is "eight million, nine hundred ninety-seven thousand, six hundred sixty".