91362228 has 12 divisors (see below), whose sum is σ = 213178560. Its totient is φ = 30454072.

The previous prime is 91362197. The next prime is 91362251. The reversal of 91362228 is 82226319.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 3806748 + ... + 3806771.

It is an arithmetic number, because the mean of its divisors is an integer number (17764880).

Almost surely, 2^91362228 is an apocalyptic number.

It is an amenable number.

91362228 is an abundant number, since it is smaller than the sum of its proper divisors (121816332).

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

91362228 is a wasteful number, since it uses less digits than its factorization.

91362228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7613526 (or 7613524 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 91362228 is about 9558.3590641909. The cubic root of 91362228 is about 450.3901603896.

The spelling of 91362228 in words is "ninety-one million, three hundred sixty-two thousand, two hundred twenty-eight".