86764685 has 16 divisors (see below), whose sum is σ = 125991936. Its totient is φ = 55995648.

The previous prime is 86764681. The next prime is 86764721. The reversal of 86764685 is 58646768.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 86764685 - 2² = 86764681 is a prime.

It is a super-2 number, since 2×86764685² = 15056221126298450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86764681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72317 + ... + 73506.

It is an arithmetic number, because the mean of its divisors is an integer number (7874496).

Almost surely, 2^86764685 is an apocalyptic number.

86764685 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86764685 is a deficient number, since it is larger than the sum of its proper divisors (39227251).

86764685 is a wasteful number, since it uses less digits than its factorization.

86764685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145852.

The product of its digits is 1935360, while the sum is 50.

The square root of 86764685 is about 9314.7563038439. The cubic root of 86764685 is about 442.7049026035.

The spelling of 86764685 in words is "eighty-six million, seven hundred sixty-four thousand, six hundred eighty-five".