91162448 has 20 divisors (see below), whose sum is σ = 190214388. Its totient is φ = 42074880.

The previous prime is 91162441. The next prime is 91162459. The reversal of 91162448 is 84426119.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8133904 + 83028544 = 2852^2 + 9112^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91162441) 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 3 ways as a sum of consecutive naturals, for example, 218933 + ... + 219348.

Almost surely, 2^91162448 is an apocalyptic number.

It is an amenable number.

91162448 is an abundant number, since it is smaller than the sum of its proper divisors (99051940).

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

91162448 is a wasteful number, since it uses less digits than its factorization.

91162448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438302 (or 438296 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 91162448 is about 9547.9028063759. The cubic root of 91162448 is about 450.0616343562.

The spelling of 91162448 in words is "ninety-one million, one hundred sixty-two thousand, four hundred forty-eight".