86999946 has 32 divisors (see below), whose sum is σ = 191006208. Its totient is φ = 26198640.

The previous prime is 86999929. The next prime is 86999947. The reversal of 86999946 is 64999968.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 86999946.

It is not an unprimeable number, because it can be changed into a prime (86999947) 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 15 ways as a sum of consecutive naturals, for example, 6715 + ... + 14801.

It is an arithmetic number, because the mean of its divisors is an integer number (5968944).

Almost surely, 2^86999946 is an apocalyptic number.

86999946 is an abundant number, since it is smaller than the sum of its proper divisors (104006262).

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

86999946 is a wasteful number, since it uses less digits than its factorization.

86999946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8266.

The product of its digits is 7558272, while the sum is 60.

The square root of 86999946 is about 9327.3761583845. The cubic root of 86999946 is about 443.1046704925.

The spelling of 86999946 in words is "eighty-six million, nine hundred ninety-nine thousand, nine hundred forty-six".