91049732 has 12 divisors (see below), whose sum is σ = 166264896. Its totient is φ = 43545480.

The previous prime is 91049723. The next prime is 91049741. The reversal of 91049732 is 23794019.

It is an interprime number because it is at equal distance from previous prime (91049723) and next prime (91049741).

It is a junction number, because it is equal to n+sod(n) for n = 91049692 and 91049701.

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, 494744 + ... + 494927.

It is an arithmetic number, because the mean of its divisors is an integer number (13855408).

Almost surely, 2^91049732 is an apocalyptic number.

91049732 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

91049732 is a deficient number, since it is larger than the sum of its proper divisors (75215164).

91049732 is a wasteful number, since it uses less digits than its factorization.

91049732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989698 (or 989696 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 91049732 is about 9541.9983232025. The cubic root of 91049732 is about 449.8760679293.

The spelling of 91049732 in words is "ninety-one million, forty-nine thousand, seven hundred thirty-two".