879656287 has 2 divisors, whose sum is σ = 879656288. Its totient is φ = 879656286.

The previous prime is 879656273. The next prime is 879656291. The reversal of 879656287 is 782656978.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-879656287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879656207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439828143 + 439828144.

It is an arithmetic number, because the mean of its divisors is an integer number (439828144).

Almost surely, 2^879656287 is an apocalyptic number.

879656287 is a deficient number, since it is larger than the sum of its proper divisors (1).

879656287 is an equidigital number, since it uses as much as digits as its factorization.

879656287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 58.

The square root of 879656287 is about 29659.0001011497. Note that the first 3 decimals coincide. The cubic root of 879656287 is about 958.1591920373.

The spelling of 879656287 in words is "eight hundred seventy-nine million, six hundred fifty-six thousand, two hundred eighty-seven".