8990415 has 24 divisors (see below), whose sum is σ = 17810208. Its totient is φ = 4109760.

The previous prime is 8990413. The next prime is 8990431. The reversal of 8990415 is 5140998.

It is not a de Polignac number, because 8990415 - 2¹ = 8990413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8990415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8990411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13956 + ... + 14585.

It is an arithmetic number, because the mean of its divisors is an integer number (742092).

Almost surely, 2^8990415 is an apocalyptic number.

8990415 is a deficient number, since it is larger than the sum of its proper divisors (8819793).

8990415 is a wasteful number, since it uses less digits than its factorization.

8990415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28559 (or 28556 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 8990415 is about 2998.4020744390. The cubic root of 8990415 is about 207.9345130997.

The spelling of 8990415 in words is "eight million, nine hundred ninety thousand, four hundred fifteen".