91360000 has 90 divisors (see below), whose sum is σ = 228280052. Its totient is φ = 36480000.

The previous prime is 91359991. The next prime is 91360001. The reversal of 91360000 is 6319.

It is a self number, because there is not a number n which added to its sum of digits gives 91360000.

It is not an unprimeable number, because it can be changed into a prime (91360001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159715 + ... + 160285.

Almost surely, 2^91360000 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 91360000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114140026).

91360000 is an abundant number, since it is smaller than the sum of its proper divisors (136920052).

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

91360000 is an frugal number, since it uses more digits than its factorization.

91360000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 91360000 is about 9558.2425162788. The cubic root of 91360000 is about 450.3864992215.

Adding to 91360000 its reverse (6319), we get a palindrome (91366319).

The spelling of 91360000 in words is "ninety-one million, three hundred sixty thousand".