91413800 has 48 divisors (see below), whose sum is σ = 219879900. Its totient is φ = 35302400.

The previous prime is 91413781. The next prime is 91413821. The reversal of 91413800 is 831419.

It can be written as a sum of positive squares in 6 ways, for example, as 40119556 + 51294244 = 6334^2 + 7162^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 91413800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2081 + ... + 13680.

Almost surely, 2^91413800 is an apocalyptic number.

It is an amenable number.

91413800 is an abundant number, since it is smaller than the sum of its proper divisors (128466100).

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

91413800 is a wasteful number, since it uses less digits than its factorization.

91413800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15806 (or 15797 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 91413800 is about 9561.0564269855. The cubic root of 91413800 is about 450.4748896143.

The spelling of 91413800 in words is "ninety-one million, four hundred thirteen thousand, eight hundred".