8998913 has 16 divisors (see below), whose sum is σ = 11811840. Its totient is φ = 6642000.

The previous prime is 8998901. The next prime is 8998919. The reversal of 8998913 is 3198998.

It is a Cunningham number, because it is equal to 208³+1.

It is a cyclic number.

It is not a de Polignac number, because 8998913 - 2⁸ = 8998657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8998919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613 + ... + 4538.

It is an arithmetic number, because the mean of its divisors is an integer number (738240).

It is a Proth number, since it is equal to 2197 ⋅ 2¹² + 1 and 2197 < 2¹².

Almost surely, 2^8998913 is an apocalyptic number.

It is an amenable number.

8998913 is a deficient number, since it is larger than the sum of its proper divisors (2812927).

8998913 is a wasteful number, since it uses less digits than its factorization.

8998913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188.

The product of its digits is 139968, while the sum is 47.

The square root of 8998913 is about 2999.8188278628. The cubic root of 8998913 is about 208.0000077046. Note that the first 5 decimals are identical.

The spelling of 8998913 in words is "eight million, nine hundred ninety-eight thousand, nine hundred thirteen".