91482720 has 192 divisors, whose sum is σ = 346913280. Its totient is φ = 19795968.

The previous prime is 91482691. The next prime is 91482731. The reversal of 91482720 is 2728419.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63124 + ... + 64556.

It is an arithmetic number, because the mean of its divisors is an integer number (1806840).

Almost surely, 2^91482720 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 91482720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173456640).

91482720 is an abundant number, since it is smaller than the sum of its proper divisors (255430560).

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

91482720 is a wasteful number, since it uses less digits than its factorization.

91482720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 91482720 is about 9564.6599521363. The cubic root of 91482720 is about 450.5880706667.

The spelling of 91482720 in words is "ninety-one million, four hundred eighty-two thousand, seven hundred twenty".