91245768 has 32 divisors (see below), whose sum is σ = 229308000. Its totient is φ = 30256128.

The previous prime is 91245751. The next prime is 91245769. The reversal of 91245768 is 86754219.

It is not an unprimeable number, because it can be changed into a prime (91245769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5218 + ... + 14481.

It is an arithmetic number, because the mean of its divisors is an integer number (7165875).

Almost surely, 2^91245768 is an apocalyptic number.

It is an amenable number.

91245768 is an abundant number, since it is smaller than the sum of its proper divisors (138062232).

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

91245768 is a wasteful number, since it uses less digits than its factorization.

91245768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19901 (or 19897 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 91245768 is about 9552.2650716990. The cubic root of 91245768 is about 450.1987073053.

The spelling of 91245768 in words is "ninety-one million, two hundred forty-five thousand, seven hundred sixty-eight".