5266391 has 8 divisors (see below), whose sum is σ = 5703600. Its totient is φ = 4833792.

The previous prime is 5266381. The next prime is 5266423. The reversal of 5266391 is 1936625.

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 a de Polignac number, because none of the positive numbers 2^k-5266391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5266301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460 + ... + 3558.

It is an arithmetic number, because the mean of its divisors is an integer number (712950).

Almost surely, 2^5266391 is an apocalyptic number.

5266391 is a deficient number, since it is larger than the sum of its proper divisors (437209).

5266391 is a wasteful number, since it uses less digits than its factorization.

5266391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305.

The product of its digits is 9720, while the sum is 32.

The square root of 5266391 is about 2294.8618694815. The cubic root of 5266391 is about 173.9820191046.

The spelling of 5266391 in words is "five million, two hundred sixty-six thousand, three hundred ninety-one".