91373200 has 60 divisors (see below), whose sum is σ = 227122740. Its totient is φ = 35284480.

The previous prime is 91373197. The next prime is 91373251. The reversal of 91373200 is 237319.

It can be written as a sum of positive squares in 6 ways, for example, as 9144576 + 82228624 = 3024^2 + 9068^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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 11 ways as a sum of consecutive naturals, for example, 7662 + ... + 15538.

It is an arithmetic number, because the mean of its divisors is an integer number (3785379).

Almost surely, 2^91373200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91373200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113561370).

91373200 is an abundant number, since it is smaller than the sum of its proper divisors (135749540).

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

91373200 is a wasteful number, since it uses less digits than its factorization.

91373200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7924 (or 7913 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 91373200 is about 9558.9329948483. The cubic root of 91373200 is about 450.4081892955.

The spelling of 91373200 in words is "ninety-one million, three hundred seventy-three thousand, two hundred".