8904090 has 96 divisors (see below), whose sum is σ = 24756480. Its totient is φ = 2036736.

The previous prime is 8904079. The next prime is 8904113. The reversal of 8904090 is 904098.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112671 + ... + 112749.

It is an arithmetic number, because the mean of its divisors is an integer number (257880).

Almost surely, 2^8904090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8904090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12378240).

8904090 is an abundant number, since it is smaller than the sum of its proper divisors (15852390).

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

8904090 is a wasteful number, since it uses less digits than its factorization.

8904090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 8904090 is about 2983.9721848570. The cubic root of 8904090 is about 207.2668499481.

The spelling of 8904090 in words is "eight million, nine hundred four thousand, ninety".