91346489 has 4 divisors (see below), whose sum is σ = 98373156. Its totient is φ = 84319824.

The previous prime is 91346467. The next prime is 91346503. The reversal of 91346489 is 98464319.

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 43626025 + 47720464 = 6605^2 + 6908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91346489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91346419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3513314 + ... + 3513339.

It is an arithmetic number, because the mean of its divisors is an integer number (24593289).

Almost surely, 2^91346489 is an apocalyptic number.

It is an amenable number.

91346489 is a deficient number, since it is larger than the sum of its proper divisors (7026667).

91346489 is a wasteful number, since it uses less digits than its factorization.

91346489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7026666.

The product of its digits is 186624, while the sum is 44.

The square root of 91346489 is about 9557.5357179558. The cubic root of 91346489 is about 450.3642959524.

The spelling of 91346489 in words is "ninety-one million, three hundred forty-six thousand, four hundred eighty-nine".