8946990 has 64 divisors (see below), whose sum is σ = 25704000. Its totient is φ = 2201472.

The previous prime is 8946919. The next prime is 8946991. The reversal of 8946990 is 996498.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8946991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2236 + ... + 4784.

It is an arithmetic number, because the mean of its divisors is an integer number (401625).

Almost surely, 2^8946990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8946990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12852000).

8946990 is an abundant number, since it is smaller than the sum of its proper divisors (16757010).

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

8946990 is a wasteful number, since it uses less digits than its factorization.

8946990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578 (or 2572 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 8946990 is about 2991.1519520078. The cubic root of 8946990 is about 207.5991880753.

The spelling of 8946990 in words is "eight million, nine hundred forty-six thousand, nine hundred ninety".