830240091 has 16 divisors (see below), whose sum is σ = 1231296000. Its totient is φ = 552903624.

The previous prime is 830240051. The next prime is 830240111. The reversal of 830240091 is 190042038.

It is not a de Polignac number, because 830240091 - 2²⁶ = 763131227 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (830240051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10210 + ... + 42008.

It is an arithmetic number, because the mean of its divisors is an integer number (76956000).

Almost surely, 2^830240091 is an apocalyptic number.

830240091 is a deficient number, since it is larger than the sum of its proper divisors (401055909).

830240091 is a wasteful number, since it uses less digits than its factorization.

830240091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32775 (or 32769 counting only the distinct ones).

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

The square root of 830240091 is about 28813.8871206229. The cubic root of 830240091 is about 939.8702442746.

The spelling of 830240091 in words is "eight hundred thirty million, two hundred forty thousand, ninety-one".