91646148 has 96 divisors (see below), whose sum is σ = 244944000. Its totient is φ = 26414080.

The previous prime is 91646141. The next prime is 91646153. The reversal of 91646148 is 84164619.

It is not an unprimeable number, because it can be changed into a prime (91646141) 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 31 ways as a sum of consecutive naturals, for example, 340558 + ... + 340826.

It is an arithmetic number, because the mean of its divisors is an integer number (2551500).

Almost surely, 2^91646148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91646148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122472000).

91646148 is an abundant number, since it is smaller than the sum of its proper divisors (153297852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91646148 is a wasteful number, since it uses less digits than its factorization.

91646148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 403 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 91646148 is about 9573.1994651736. The cubic root of 91646148 is about 450.8562265924.

The spelling of 91646148 in words is "ninety-one million, six hundred forty-six thousand, one hundred forty-eight".