86845986 has 16 divisors (see below), whose sum is σ = 192991200. Its totient is φ = 28948644.

The previous prime is 86845951. The next prime is 86845987. The reversal of 86845986 is 68954868.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1608259 = 86845986 / (8 + 6 + 8 + 4 + 5 + 9 + 8 + 6).

It is not an unprimeable number, because it can be changed into a prime (86845987) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 804076 + ... + 804183.

It is an arithmetic number, because the mean of its divisors is an integer number (12061950).

Almost surely, 2^86845986 is an apocalyptic number.

86845986 is an abundant number, since it is smaller than the sum of its proper divisors (106145214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86845986 is a wasteful number, since it uses less digits than its factorization.

86845986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608270 (or 1608264 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 86845986 is about 9319.1193789971. The cubic root of 86845986 is about 442.8431351696.

The spelling of 86845986 in words is "eighty-six million, eight hundred forty-five thousand, nine hundred eighty-six".