86690799 has 24 divisors (see below), whose sum is σ = 135298800. Its totient is φ = 53171712.

The previous prime is 86690783. The next prime is 86690801. The reversal of 86690799 is 99709668.

It is not a de Polignac number, because 86690799 - 2⁴ = 86690783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86690719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40252 + ... + 42350.

It is an arithmetic number, because the mean of its divisors is an integer number (5637450).

Almost surely, 2^86690799 is an apocalyptic number.

86690799 is a deficient number, since it is larger than the sum of its proper divisors (48608001).

86690799 is a wasteful number, since it uses less digits than its factorization.

86690799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 2468 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 86690799 is about 9310.7893865128. The cubic root of 86690799 is about 442.5792025230.

The spelling of 86690799 in words is "eighty-six million, six hundred ninety thousand, seven hundred ninety-nine".