8959990 has 32 divisors (see below), whose sum is σ = 17519040. Its totient is φ = 3279744.

The previous prime is 8959981. The next prime is 8959991. The reversal of 8959990 is 999598.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8959991) 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, 20191 + ... + 20629.

It is an arithmetic number, because the mean of its divisors is an integer number (547470).

Almost surely, 2^8959990 is an apocalyptic number.

8959990 is a deficient number, since it is larger than the sum of its proper divisors (8559050).

8959990 is a wasteful number, since it uses less digits than its factorization.

8959990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616.

The product of its (nonzero) digits is 262440, while the sum is 49.

The square root of 8959990 is about 2993.3242390359. The cubic root of 8959990 is about 207.6996868048.

The spelling of 8959990 in words is "eight million, nine hundred fifty-nine thousand, nine hundred ninety".