8772661 has 8 divisors (see below), whose sum is σ = 9267200. Its totient is φ = 8304444.

The previous prime is 8772653. The next prime is 8772667. The reversal of 8772661 is 1662778.

It is a happy number.

8772661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8772661 - 2³ = 8772653 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 8772661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8772667) 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, 6220 + ... + 7498.

It is an arithmetic number, because the mean of its divisors is an integer number (1158400).

Almost surely, 2^8772661 is an apocalyptic number.

It is an amenable number.

8772661 is a deficient number, since it is larger than the sum of its proper divisors (494539).

8772661 is an equidigital number, since it uses as much as digits as its factorization.

8772661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1298 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 8772661 is about 2961.8678228442. The cubic root of 8772661 is about 206.2420020162.

The spelling of 8772661 in words is "eight million, seven hundred seventy-two thousand, six hundred sixty-one".