8997940 has 24 divisors (see below), whose sum is σ = 21595392. Its totient is φ = 3084960.

The previous prime is 8997931. The next prime is 8997941. The reversal of 8997940 is 497998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8997941) 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, 31996 + ... + 32275.

It is an arithmetic number, because the mean of its divisors is an integer number (899808).

Almost surely, 2^8997940 is an apocalyptic number.

It is an amenable number.

8997940 is an abundant number, since it is smaller than the sum of its proper divisors (12597452).

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

8997940 is a wasteful number, since it uses less digits than its factorization.

8997940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64287 (or 64285 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 8997940 is about 2999.6566470181. The cubic root of 8997940 is about 207.9925108250.

The spelling of 8997940 in words is "eight million, nine hundred ninety-seven thousand, nine hundred forty".