86117872 has 20 divisors (see below), whose sum is σ = 166998240. Its totient is φ = 43021568.

The previous prime is 86117851. The next prime is 86117893. The reversal of 86117872 is 27871168.

It is an interprime number because it is at equal distance from previous prime (86117851) and next prime (86117893).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31704 + ... + 34312.

It is an arithmetic number, because the mean of its divisors is an integer number (8349912).

Almost surely, 2^86117872 is an apocalyptic number.

It is an amenable number.

86117872 is a deficient number, since it is larger than the sum of its proper divisors (80880368).

86117872 is a wasteful number, since it uses less digits than its factorization.

86117872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4680 (or 4674 counting only the distinct ones).

The product of its digits is 37632, while the sum is 40.

The square root of 86117872 is about 9279.9715516805. The cubic root of 86117872 is about 441.6020660391.

The spelling of 86117872 in words is "eighty-six million, one hundred seventeen thousand, eight hundred seventy-two".