91825064 has 16 divisors (see below), whose sum is σ = 173529600. Its totient is φ = 45550512.

The previous prime is 91825057. The next prime is 91825079. The reversal of 91825064 is 46052819.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 44174 + ... + 46205.

It is an arithmetic number, because the mean of its divisors is an integer number (10845600).

Almost surely, 2^91825064 is an apocalyptic number.

It is an amenable number.

91825064 is a deficient number, since it is larger than the sum of its proper divisors (81704536).

91825064 is a wasteful number, since it uses less digits than its factorization.

91825064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90512 (or 90508 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 91825064 is about 9582.5395381391. The cubic root of 91825064 is about 451.1494302470.

The spelling of 91825064 in words is "ninety-one million, eight hundred twenty-five thousand, sixty-four".