87796879 has 2 divisors, whose sum is σ = 87796880. Its totient is φ = 87796878.

The previous prime is 87796871. The next prime is 87796913. The reversal of 87796879 is 97869778.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87796879 - 2³ = 87796871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87796871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43898439 + 43898440.

It is an arithmetic number, because the mean of its divisors is an integer number (43898440).

Almost surely, 2^87796879 is an apocalyptic number.

87796879 is a deficient number, since it is larger than the sum of its proper divisors (1).

87796879 is an equidigital number, since it uses as much as digits as its factorization.

87796879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 61.

The square root of 87796879 is about 9369.9988794023. The cubic root of 87796879 is about 444.4535294231.

The spelling of 87796879 in words is "eighty-seven million, seven hundred ninety-six thousand, eight hundred seventy-nine".