8990780 has 24 divisors (see below), whose sum is σ = 19096560. Its totient is φ = 3555200.

The previous prime is 8990777. The next prime is 8990791. The reversal of 8990780 is 870998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746 + ... + 4305.

It is an arithmetic number, because the mean of its divisors is an integer number (795690).

Almost surely, 2^8990780 is an apocalyptic number.

It is an amenable number.

8990780 is an abundant number, since it is smaller than the sum of its proper divisors (10105780).

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

8990780 is a wasteful number, since it uses less digits than its factorization.

8990780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149 (or 5147 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 8990780 is about 2998.4629395742. The cubic root of 8990780 is about 207.9373270251.

The spelling of 8990780 in words is "eight million, nine hundred ninety thousand, seven hundred eighty".