91272834 has 24 divisors (see below), whose sum is σ = 197935920. Its totient is φ = 30396888.

The previous prime is 91272833. The next prime is 91272869. The reversal of 91272834 is 43827219.

It is not an unprimeable number, because it can be changed into a prime (91272833) 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, 32997 + ... + 35655.

It is an arithmetic number, because the mean of its divisors is an integer number (8247330).

Almost surely, 2^91272834 is an apocalyptic number.

91272834 is an abundant number, since it is smaller than the sum of its proper divisors (106663086).

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

91272834 is a wasteful number, since it uses less digits than its factorization.

91272834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574 (or 4571 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 91272834 is about 9553.6816986961. The cubic root of 91272834 is about 450.2432166704.

The spelling of 91272834 in words is "ninety-one million, two hundred seventy-two thousand, eight hundred thirty-four".