996772609 has 8 divisors (see below), whose sum is σ = 1158477120. Its totient is φ = 839895216.

The previous prime is 996772603. The next prime is 996772613. The reversal of 996772609 is 906277699.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996772609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 996772609.

It is not an unprimeable number, because it can be changed into a prime (996772603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206334 + ... + 1207159.

It is an arithmetic number, because the mean of its divisors is an integer number (144809640).

Almost surely, 2^996772609 is an apocalyptic number.

It is an amenable number.

996772609 is a deficient number, since it is larger than the sum of its proper divisors (161704511).

996772609 is a wasteful number, since it uses less digits than its factorization.

996772609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413559.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The square root of 996772609 is about 31571.7058297457. The cubic root of 996772609 is about 998.9230435812.

The spelling of 996772609 in words is "nine hundred ninety-six million, seven hundred seventy-two thousand, six hundred nine".