91084230 has 32 divisors (see below), whose sum is σ = 242892000. Its totient is φ = 24289056.

The previous prime is 91084229. The next prime is 91084241. The reversal of 91084230 is 3248019.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 91084194 and 91084203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168405 + ... + 168944.

It is an arithmetic number, because the mean of its divisors is an integer number (7590375).

Almost surely, 2^91084230 is an apocalyptic number.

91084230 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

91084230 is an abundant number, since it is smaller than the sum of its proper divisors (151807770).

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

91084230 is a wasteful number, since it uses less digits than its factorization.

91084230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337365 (or 337359 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 91084230 is about 9543.8058446303. The cubic root of 91084230 is about 449.9328788777.

The spelling of 91084230 in words is "ninety-one million, eighty-four thousand, two hundred thirty".