86836685 has 8 divisors (see below), whose sum is σ = 112219800. Its totient is φ = 64125504.

The previous prime is 86836681. The next prime is 86836691. The reversal of 86836685 is 58663868.

It can be written as a sum of positive squares in 4 ways, for example, as 7946761 + 78889924 = 2819^2 + 8882^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86836685 - 2² = 86836681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86836681) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 667910 + ... + 668039.

It is an arithmetic number, because the mean of its divisors is an integer number (14027475).

Almost surely, 2^86836685 is an apocalyptic number.

It is an amenable number.

86836685 is a deficient number, since it is larger than the sum of its proper divisors (25383115).

86836685 is a wasteful number, since it uses less digits than its factorization.

86836685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335967.

The product of its digits is 1658880, while the sum is 50.

The square root of 86836685 is about 9318.6203377968. The cubic root of 86836685 is about 442.8273254539.

The spelling of 86836685 in words is "eighty-six million, eight hundred thirty-six thousand, six hundred eighty-five".