91826481 has 16 divisors (see below), whose sum is σ = 124722560. Its totient is φ = 60082560.

The previous prime is 91826447. The next prime is 91826491. The reversal of 91826481 is 18462819.

It is not a de Polignac number, because 91826481 - 2⁶ = 91826417 is a prime.

It is a super-2 number, since 2×91826481² = 16864205225686722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (91826431) 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, 49236 + ... + 51066.

It is an arithmetic number, because the mean of its divisors is an integer number (7795160).

Almost surely, 2^91826481 is an apocalyptic number.

It is an amenable number.

91826481 is a deficient number, since it is larger than the sum of its proper divisors (32896079).

91826481 is a wasteful number, since it uses less digits than its factorization.

91826481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136.

The product of its digits is 27648, while the sum is 39.

The square root of 91826481 is about 9582.6134744129. The cubic root of 91826481 is about 451.1517508750.

The spelling of 91826481 in words is "ninety-one million, eight hundred twenty-six thousand, four hundred eighty-one".