86504879 has 2 divisors, whose sum is σ = 86504880. Its totient is φ = 86504878.

The previous prime is 86504833. The next prime is 86504881. The reversal of 86504879 is 97840568.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86504879 - 2⁸ = 86504623 is a prime.

Together with 86504881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43252439 + 43252440.

It is an arithmetic number, because the mean of its divisors is an integer number (43252440).

Almost surely, 2^86504879 is an apocalyptic number.

86504879 is a deficient number, since it is larger than the sum of its proper divisors (1).

86504879 is an equidigital number, since it uses as much as digits as its factorization.

86504879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 86504879 is about 9300.7999118355. The cubic root of 86504879 is about 442.2625859973.

The spelling of 86504879 in words is "eighty-six million, five hundred four thousand, eight hundred seventy-nine".