86999225 has 12 divisors (see below), whose sum is σ = 112570176. Its totient is φ = 66572880.

The previous prime is 86999219. The next prime is 86999243. The reversal of 86999225 is 52299968.

It is a happy number.

It is not a de Polignac number, because 86999225 - 2¹⁰ = 86998201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 75077 + ... + 76226.

It is an arithmetic number, because the mean of its divisors is an integer number (9380848).

Almost surely, 2^86999225 is an apocalyptic number.

It is an amenable number.

86999225 is a deficient number, since it is larger than the sum of its proper divisors (25570951).

86999225 is a wasteful number, since it uses less digits than its factorization.

86999225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151336 (or 151331 counting only the distinct ones).

The product of its digits is 699840, while the sum is 50.

The square root of 86999225 is about 9327.3375086356. The cubic root of 86999225 is about 443.1034464329.

The spelling of 86999225 in words is "eighty-six million, nine hundred ninety-nine thousand, two hundred twenty-five".