91828325 has 6 divisors (see below), whose sum is σ = 113867154. Its totient is φ = 73462640.

The previous prime is 91828301. The next prime is 91828333. The reversal of 91828325 is 52382819.

It can be written as a sum of positive squares in 3 ways, for example, as 568516 + 91259809 = 754^2 + 9553^2 .

It is not a de Polignac number, because 91828325 - 2¹⁶ = 91762789 is a prime.

It is a Duffinian number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 1836542 + ... + 1836591.

It is an arithmetic number, because the mean of its divisors is an integer number (18977859).

Almost surely, 2^91828325 is an apocalyptic number.

It is an amenable number.

91828325 is a deficient number, since it is larger than the sum of its proper divisors (22038829).

91828325 is a wasteful number, since it uses less digits than its factorization.

91828325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673143 (or 3673138 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 91828325 is about 9582.7096898529. The cubic root of 91828325 is about 451.1547707673.

The spelling of 91828325 in words is "ninety-one million, eight hundred twenty-eight thousand, three hundred twenty-five".