91986050 has 48 divisors (see below), whose sum is σ = 188237952. Its totient is φ = 33230400.

The previous prime is 91986019. The next prime is 91986071. The reversal of 91986050 is 5068919.

It is a super-2 number, since 2×91986050² = 16922866789205000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91985995 and 91986013.

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 23 ways as a sum of consecutive naturals, for example, 29045 + ... + 32055.

It is an arithmetic number, because the mean of its divisors is an integer number (3921624).

Almost surely, 2^91986050 is an apocalyptic number.

91986050 is an abundant number, since it is smaller than the sum of its proper divisors (96251902).

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

91986050 is a wasteful number, since it uses less digits than its factorization.

91986050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083 (or 3078 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 91986050 is about 9590.9358250381. The cubic root of 91986050 is about 451.4129252614.

The spelling of 91986050 in words is "ninety-one million, nine hundred eighty-six thousand, fifty".