91274632 has 32 divisors (see below), whose sum is σ = 190749600. Its totient is φ = 40690944.

The previous prime is 91274587. The next prime is 91274641. The reversal of 91274632 is 23647219.

It is a Harshad number since it is a multiple of its sum of digits (34).

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 7 ways as a sum of consecutive naturals, for example, 15078 + ... + 20245.

It is an arithmetic number, because the mean of its divisors is an integer number (5960925).

Almost surely, 2^91274632 is an apocalyptic number.

It is an amenable number.

91274632 is an abundant number, since it is smaller than the sum of its proper divisors (99474968).

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

91274632 is a wasteful number, since it uses less digits than its factorization.

91274632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35365 (or 35361 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 91274632 is about 9553.7757980811. The cubic root of 91274632 is about 450.2461731250.

It can be divided in two parts, 9 and 1274632, that added together give a square (1274641 = 1129²).

The spelling of 91274632 in words is "ninety-one million, two hundred seventy-four thousand, six hundred thirty-two".