8913090 has 48 divisors (see below), whose sum is σ = 22603968. Its totient is φ = 2248992.

The previous prime is 8913067. The next prime is 8913103. The reversal of 8913090 is 903198.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10419 + ... + 11241.

It is an arithmetic number, because the mean of its divisors is an integer number (470916).

Almost surely, 2^8913090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8913090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11301984).

8913090 is an abundant number, since it is smaller than the sum of its proper divisors (13690878).

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

8913090 is a wasteful number, since it uses less digits than its factorization.

8913090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 8913090 is about 2985.4798609269. The cubic root of 8913090 is about 207.3366595713.

The spelling of 8913090 in words is "eight million, nine hundred thirteen thousand, ninety".