8872697661 has 8 divisors (see below), whose sum is σ = 11835823584. Its totient is φ = 5912351760.

The previous prime is 8872697633. The next prime is 8872697663. The reversal of 8872697661 is 1667962788.

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

It is not a de Polignac number, because 8872697661 - 2¹⁵ = 8872664893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8872697595 and 8872697604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8872697663) 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, 687546 + ... + 700331.

It is an arithmetic number, because the mean of its divisors is an integer number (1479477948).

Almost surely, 2^8872697661 is an apocalyptic number.

It is an amenable number.

8872697661 is a deficient number, since it is larger than the sum of its proper divisors (2963125923).

8872697661 is a wasteful number, since it uses less digits than its factorization.

8872697661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390011.

The product of its digits is 12192768, while the sum is 60.

The square root of 8872697661 is about 94194.9980678380. The cubic root of 8872697661 is about 2070.2298251206.

The spelling of 8872697661 in words is "eight billion, eight hundred seventy-two million, six hundred ninety-seven thousand, six hundred sixty-one".