873679979 has 2 divisors, whose sum is σ = 873679980. Its totient is φ = 873679978.

The previous prime is 873679957. The next prime is 873680023. The reversal of 873679979 is 979976378.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-873679979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (873679949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436839989 + 436839990.

It is an arithmetic number, because the mean of its divisors is an integer number (436839990).

Almost surely, 2^873679979 is an apocalyptic number.

873679979 is a deficient number, since it is larger than the sum of its proper divisors (1).

873679979 is an equidigital number, since it uses as much as digits as its factorization.

873679979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36006768, while the sum is 65.

The square root of 873679979 is about 29558.0780667485. The cubic root of 873679979 is about 955.9843761124.

The spelling of 873679979 in words is "eight hundred seventy-three million, six hundred seventy-nine thousand, nine hundred seventy-nine".