91480641 has 8 divisors (see below), whose sum is σ = 139399104. Its totient is φ = 52274640.

The previous prime is 91480639. The next prime is 91480643. The reversal of 91480641 is 14608419.

It is an interprime number because it is at equal distance from previous prime (91480639) and next prime (91480643).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91480641 - 2¹ = 91480639 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91480643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2178090 + ... + 2178131.

It is an arithmetic number, because the mean of its divisors is an integer number (17424888).

Almost surely, 2^91480641 is an apocalyptic number.

It is an amenable number.

91480641 is a deficient number, since it is larger than the sum of its proper divisors (47918463).

91480641 is a wasteful number, since it uses less digits than its factorization.

91480641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356231.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 91480641 is about 9564.5512701851. The cubic root of 91480641 is about 450.5846573456.

The spelling of 91480641 in words is "ninety-one million, four hundred eighty thousand, six hundred forty-one".