86678756 has 18 divisors (see below), whose sum is σ = 155601558. Its totient is φ = 42224160.

The previous prime is 86678749. The next prime is 86678773. The reversal of 86678756 is 65787668.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 33825856 = 7270^2 + 5816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86678698 and 86678707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118865 + ... + 119591.

It is an arithmetic number, because the mean of its divisors is an integer number (8644531).

Almost surely, 2^86678756 is an apocalyptic number.

It is an amenable number.

86678756 is a deficient number, since it is larger than the sum of its proper divisors (68922802).

86678756 is an equidigital number, since it uses as much as digits as its factorization.

86678756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499 (or 770 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The square root of 86678756 is about 9310.1426412274. The cubic root of 86678756 is about 442.5587073523.

The spelling of 86678756 in words is "eighty-six million, six hundred seventy-eight thousand, seven hundred fifty-six".