6246639 has 40 divisors (see below), whose sum is σ = 11151360. Its totient is φ = 3407184.

The previous prime is 6246623. The next prime is 6246671. The reversal of 6246639 is 9366426.

It is not a de Polignac number, because 6246639 - 2⁴ = 6246623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6246619) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12802 + ... + 13280.

It is an arithmetic number, because the mean of its divisors is an integer number (278784).

Almost surely, 2^6246639 is an apocalyptic number.

6246639 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

6246639 is a deficient number, since it is larger than the sum of its proper divisors (4904721).

6246639 is a wasteful number, since it uses less digits than its factorization.

6246639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 512 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 6246639 is about 2499.3277096051. The cubic root of 6246639 is about 184.1685502652.

The spelling of 6246639 in words is "six million, two hundred forty-six thousand, six hundred thirty-nine".