8990617 has 2 divisors, whose sum is σ = 8990618. Its totient is φ = 8990616.

The previous prime is 8990587. The next prime is 8990623. The reversal of 8990617 is 7160998.

8990617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5645376 + 3345241 = 2376^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 8990617 - 2¹¹ = 8988569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8990617.

It is not a weakly prime, because it can be changed into another prime (8990687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4495308 + 4495309.

It is an arithmetic number, because the mean of its divisors is an integer number (4495309).

Almost surely, 2^8990617 is an apocalyptic number.

It is an amenable number.

8990617 is a deficient number, since it is larger than the sum of its proper divisors (1).

8990617 is an equidigital number, since it uses as much as digits as its factorization.

8990617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 8990617 is about 2998.4357588583. The cubic root of 8990617 is about 207.9360704048.

The spelling of 8990617 in words is "eight million, nine hundred ninety thousand, six hundred seventeen".