91350680 has 32 divisors (see below), whose sum is σ = 205813440. Its totient is φ = 36491520.

The previous prime is 91350671. The next prime is 91350731. The reversal of 91350680 is 8605319.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52220 + ... + 53940.

It is an arithmetic number, because the mean of its divisors is an integer number (6431670).

Almost surely, 2^91350680 is an apocalyptic number.

It is an amenable number.

91350680 is an abundant number, since it is smaller than the sum of its proper divisors (114462760).

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

91350680 is a wasteful number, since it uses less digits than its factorization.

91350680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059 (or 3055 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 91350680 is about 9557.7549665180. The cubic root of 91350680 is about 450.3711834563.

Adding to 91350680 its reverse (8605319), we get a palindrome (99955999).

The spelling of 91350680 in words is "ninety-one million, three hundred fifty thousand, six hundred eighty".