879184661 has 2 divisors, whose sum is σ = 879184662. Its totient is φ = 879184660.

The previous prime is 879184633. The next prime is 879184667. The reversal of 879184661 is 166481978.

879184661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600495025 + 278689636 = 24505^2 + 16694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-879184661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879184667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439592330 + 439592331.

It is an arithmetic number, because the mean of its divisors is an integer number (439592331).

Almost surely, 2^879184661 is an apocalyptic number.

It is an amenable number.

879184661 is a deficient number, since it is larger than the sum of its proper divisors (1).

879184661 is an equidigital number, since it uses as much as digits as its factorization.

879184661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 50.

The square root of 879184661 is about 29651.0482276765. The cubic root of 879184661 is about 957.9879230321.

The spelling of 879184661 in words is "eight hundred seventy-nine million, one hundred eighty-four thousand, six hundred sixty-one".