91250732 has 24 divisors (see below), whose sum is σ = 169303680. Its totient is φ = 42958080.

The previous prime is 91250699. The next prime is 91250737. The reversal of 91250732 is 23705219.

It is a junction number, because it is equal to n+sod(n) for n = 91250695 and 91250704.

It is not an unprimeable number, because it can be changed into a prime (91250737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5357 + ... + 14532.

It is an arithmetic number, because the mean of its divisors is an integer number (7054320).

Almost surely, 2^91250732 is an apocalyptic number.

It is an amenable number.

91250732 is a deficient number, since it is larger than the sum of its proper divisors (78052948).

91250732 is a wasteful number, since it uses less digits than its factorization.

91250732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19961 (or 19959 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 91250732 is about 9552.5249018257. The cubic root of 91250732 is about 450.2068711391.

The spelling of 91250732 in words is "ninety-one million, two hundred fifty thousand, seven hundred thirty-two".