8997609 has 8 divisors (see below), whose sum is σ = 12083680. Its totient is φ = 5954976.

The previous prime is 8997601. The next prime is 8997613. The reversal of 8997609 is 9067998.

It is a happy number.

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

It is not a de Polignac number, because 8997609 - 2³ = 8997601 is a prime.

It is a Duffinian number.

8997609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8997601) 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 7 ways as a sum of consecutive naturals, for example, 10372 + ... + 11205.

It is an arithmetic number, because the mean of its divisors is an integer number (1510460).

Almost surely, 2^8997609 is an apocalyptic number.

It is an amenable number.

8997609 is a deficient number, since it is larger than the sum of its proper divisors (3086071).

8997609 is a wasteful number, since it uses less digits than its factorization.

8997609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21719.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 8997609 is about 2999.6014735294. The cubic root of 8997609 is about 207.9899603759.

The spelling of 8997609 in words is "eight million, nine hundred ninety-seven thousand, six hundred nine".