91641322 has 24 divisors (see below), whose sum is σ = 146770560. Its totient is φ = 42905280.

The previous prime is 91641311. The next prime is 91641323. The reversal of 91641322 is 22314619.

It is not an unprimeable number, because it can be changed into a prime (91641323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191079 + ... + 191557.

It is an arithmetic number, because the mean of its divisors is an integer number (6115440).

Almost surely, 2^91641322 is an apocalyptic number.

91641322 is a deficient number, since it is larger than the sum of its proper divisors (55129238).

91641322 is a wasteful number, since it uses less digits than its factorization.

91641322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 829 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 91641322 is about 9572.9474040130. The cubic root of 91641322 is about 450.8483125652.

The spelling of 91641322 in words is "ninety-one million, six hundred forty-one thousand, three hundred twenty-two".