89091291 has 8 divisors (see below), whose sum is σ = 118843200. Its totient is φ = 59366792.

The previous prime is 89091281. The next prime is 89091311. The reversal of 89091291 is 19219098.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89091291 - 2¹¹ = 89089243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89091221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2596 + ... + 13598.

It is an arithmetic number, because the mean of its divisors is an integer number (14855400).

Almost surely, 2^89091291 is an apocalyptic number.

89091291 is a deficient number, since it is larger than the sum of its proper divisors (29751909).

89091291 is a wasteful number, since it uses less digits than its factorization.

89091291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13705.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 89091291 is about 9438.8183052753. The cubic root of 89091291 is about 446.6271132150.

The spelling of 89091291 in words is "eighty-nine million, ninety-one thousand, two hundred ninety-one".