91612086 has 8 divisors (see below), whose sum is σ = 183224184. Its totient is φ = 30537360.

The previous prime is 91612063. The next prime is 91612093. The reversal of 91612086 is 68021619.

It is a sphenic number, since it is the product of 3 distinct primes.

91612086 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7634335 + ... + 7634346.

It is an arithmetic number, because the mean of its divisors is an integer number (22903023).

Almost surely, 2^91612086 is an apocalyptic number.

91612086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

91612086 is a wasteful number, since it uses less digits than its factorization.

91612086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15268686.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 91612086 is about 9571.4202707853. The cubic root of 91612086 is about 450.8003632961.

The spelling of 91612086 in words is "ninety-one million, six hundred twelve thousand, eighty-six".