8997408 has 72 divisors (see below), whose sum is σ = 29248128. Its totient is φ = 2570112.

The previous prime is 8997407. The next prime is 8997413. The reversal of 8997408 is 8047998.

It is a tau number, because it is divible by the number of its divisors (72).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8997407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216 + ... + 4247.

It is an arithmetic number, because the mean of its divisors is an integer number (406224).

Almost surely, 2^8997408 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 8997408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14624064).

8997408 is an abundant number, since it is smaller than the sum of its proper divisors (20250720).

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

8997408 is a wasteful number, since it uses less digits than its factorization.

8997408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 8997408 is about 2999.5679688915. The cubic root of 8997408 is about 207.9884115832.

The spelling of 8997408 in words is "eight million, nine hundred ninety-seven thousand, four hundred eight".