6222591 has 6 divisors (see below), whose sum is σ = 8988200. Its totient is φ = 4148388.

The previous prime is 6222551. The next prime is 6222607. The reversal of 6222591 is 1952226.

6222591 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 6222591 - 2¹³ = 6214399 is a prime.

It is a d-powerful number, because it can be written as 6² + 2⁷ + 2⁸ + 2²⁰ + 5⁸ + 9⁷ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6222551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345691 + ... + 345708.

Almost surely, 2^6222591 is an apocalyptic number.

6222591 is a deficient number, since it is larger than the sum of its proper divisors (2765609).

6222591 is a wasteful number, since it uses less digits than its factorization.

6222591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691405 (or 691402 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 6222591 is about 2494.5121767592. The cubic root of 6222591 is about 183.9319120319.

The spelling of 6222591 in words is "six million, two hundred twenty-two thousand, five hundred ninety-one".