8990417 has 4 divisors (see below), whose sum is σ = 9002340. Its totient is φ = 8978496.

The previous prime is 8990413. The next prime is 8990431. The reversal of 8990417 is 7140998.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3225616 + 5764801 = 1796^2 + 2401^2 .

It is a cyclic number.

It is not a de Polignac number, because 8990417 - 2² = 8990413 is a prime.

It is a Duffinian 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4748 + ... + 6365.

It is an arithmetic number, because the mean of its divisors is an integer number (2250585).

Almost surely, 2^8990417 is an apocalyptic number.

It is an amenable number.

8990417 is a deficient number, since it is larger than the sum of its proper divisors (11923).

8990417 is a wasteful number, since it uses less digits than its factorization.

8990417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11922.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 8990417 is about 2998.4024079499. The cubic root of 8990417 is about 207.9345285187.

The spelling of 8990417 in words is "eight million, nine hundred ninety thousand, four hundred seventeen".