91034689 has 4 divisors (see below), whose sum is σ = 93495124. Its totient is φ = 88574256.

The previous prime is 91034659. The next prime is 91034701. The reversal of 91034689 is 98643019.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55130625 + 35904064 = 7425^2 + 5992^2 .

It is a cyclic number.

It is not a de Polignac number, because 91034689 - 2⁷ = 91034561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91034659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230162 + ... + 1230235.

It is an arithmetic number, because the mean of its divisors is an integer number (23373781).

Almost surely, 2^91034689 is an apocalyptic number.

It is an amenable number.

91034689 is a deficient number, since it is larger than the sum of its proper divisors (2460435).

91034689 is a wasteful number, since it uses less digits than its factorization.

91034689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460434.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 91034689 is about 9541.2100385643. The cubic root of 91034689 is about 449.8512907799.

The spelling of 91034689 in words is "ninety-one million, thirty-four thousand, six hundred eighty-nine".