91602641 has 8 divisors (see below), whose sum is σ = 98989800. Its totient is φ = 84264192.

The previous prime is 91602631. The next prime is 91602649. The reversal of 91602641 is 14620619.

It can be written as a sum of positive squares in 4 ways, for example, as 18671041 + 72931600 = 4321^2 + 8540^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91602641 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91602649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8216 + ... + 15833.

It is an arithmetic number, because the mean of its divisors is an integer number (12373725).

Almost surely, 2^91602641 is an apocalyptic number.

It is an amenable number.

91602641 is a deficient number, since it is larger than the sum of its proper divisors (7387159).

91602641 is a wasteful number, since it uses less digits than its factorization.

91602641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24355.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 91602641 is about 9570.9268621174. The cubic root of 91602641 is about 450.7848705959.

The spelling of 91602641 in words is "ninety-one million, six hundred two thousand, six hundred forty-one".