91882605 has 16 divisors (see below), whose sum is σ = 151755264. Its totient is φ = 47423040.

The previous prime is 91882589. The next prime is 91882607. The reversal of 91882605 is 50628819.

It is not a de Polignac number, because 91882605 - 2⁴ = 91882589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91882607) 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 15 ways as a sum of consecutive naturals, for example, 98334 + ... + 99263.

It is an arithmetic number, because the mean of its divisors is an integer number (9484704).

Almost surely, 2^91882605 is an apocalyptic number.

It is an amenable number.

91882605 is a deficient number, since it is larger than the sum of its proper divisors (59872659).

91882605 is a wasteful number, since it uses less digits than its factorization.

91882605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197636.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 91882605 is about 9585.5414557551. The cubic root of 91882605 is about 451.2436462402.

The spelling of 91882605 in words is "ninety-one million, eight hundred eighty-two thousand, six hundred five".