8993520 has 60 divisors (see below), whose sum is σ = 30205656. Its totient is φ = 2398080.

The previous prime is 8993507. The next prime is 8993531. The reversal of 8993520 is 253998.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Smith number, since the sum of its digits (36) 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 (36).

It is a d-powerful number, because it can be written as 8⁷ + 9⁴ + 9⁴ + 3¹⁴ + 5⁵ + 2²¹ + 0 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5526 + ... + 6965.

Almost surely, 2^8993520 is an apocalyptic number.

8993520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8993520 is an abundant number, since it is smaller than the sum of its proper divisors (21212136).

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

8993520 is a wasteful number, since it uses less digits than its factorization.

8993520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12510 (or 12501 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 8993520 is about 2998.9198055300. The cubic root of 8993520 is about 207.9584483074.

The spelling of 8993520 in words is "eight million, nine hundred ninety-three thousand, five hundred twenty".