8913381 has 16 divisors (see below), whose sum is σ = 12320640. Its totient is φ = 5728320.

The previous prime is 8913349. The next prime is 8913391. The reversal of 8913381 is 1833198.

It is not a de Polignac number, because 8913381 - 2⁵ = 8913349 is a prime.

It is a super-2 number, since 2×8913381² = 158896721702322, which contains 22 as substring.

8913381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8913391) 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, 9240 + ... + 10158.

It is an arithmetic number, because the mean of its divisors is an integer number (770040).

Almost surely, 2^8913381 is an apocalyptic number.

It is an amenable number.

8913381 is a deficient number, since it is larger than the sum of its proper divisors (3407259).

8913381 is a wasteful number, since it uses less digits than its factorization.

8913381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036.

The product of its digits is 5184, while the sum is 33.

The square root of 8913381 is about 2985.5285964130. The cubic root of 8913381 is about 207.3389159646.

The spelling of 8913381 in words is "eight million, nine hundred thirteen thousand, three hundred eighty-one".