6539822 has 16 divisors (see below), whose sum is σ = 10188672. Its totient is φ = 3144960.

The previous prime is 6539807. The next prime is 6539831. The reversal of 6539822 is 2289356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19238 + ... + 19574.

It is an arithmetic number, because the mean of its divisors is an integer number (636792).

Almost surely, 2^6539822 is an apocalyptic number.

6539822 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6539822 is a deficient number, since it is larger than the sum of its proper divisors (3648850).

6539822 is a wasteful number, since it uses less digits than its factorization.

6539822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683.

The product of its digits is 25920, while the sum is 35.

The square root of 6539822 is about 2557.3075685181. The cubic root of 6539822 is about 187.0059002781.

The spelling of 6539822 in words is "six million, five hundred thirty-nine thousand, eight hundred twenty-two".