609090917 has 8 divisors (see below), whose sum is σ = 622793472. Its totient is φ = 595508400.

The previous prime is 609090887. The next prime is 609090931. The reversal of 609090917 is 719090906.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 609090917 - 2⁸ = 609090661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609090967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19709 + ... + 40082.

It is an arithmetic number, because the mean of its divisors is an integer number (77849184).

Almost surely, 2^609090917 is an apocalyptic number.

It is an amenable number.

609090917 is a deficient number, since it is larger than the sum of its proper divisors (13702555).

609090917 is a wasteful number, since it uses less digits than its factorization.

609090917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60019.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 609090917 is about 24679.7673611402. The cubic root of 609090917 is about 847.6710952472.

The spelling of 609090917 in words is "six hundred nine million, ninety thousand, nine hundred seventeen".