6244864 has 20 divisors (see below), whose sum is σ = 12478554. Its totient is φ = 3122176.

The previous prime is 6244859. The next prime is 6244867. The reversal of 6244864 is 4684426.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4804864 + 1440000 = 2192^2 + 1200^2 .

It is a super-3 number, since 3×6244864³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 6⁸ + 2¹⁹ + 4⁵ + 4⁵ + 8⁷ + 6⁸ + 4⁹ .

It is not an unprimeable number, because it can be changed into a prime (6244867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5587 + ... + 6610.

Almost surely, 2^6244864 is an apocalyptic number.

6244864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6244864 is a deficient number, since it is larger than the sum of its proper divisors (6233690).

6244864 is an equidigital number, since it uses as much as digits as its factorization.

6244864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12215 (or 12199 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 6244864 is about 2498.9725888853. The cubic root of 6244864 is about 184.1511046093.

The spelling of 6244864 in words is "six million, two hundred forty-four thousand, eight hundred sixty-four".