6494864 has 20 divisors (see below), whose sum is σ = 12727980. Its totient is φ = 3210240.

The previous prime is 6494863. The next prime is 6494881. The reversal of 6494864 is 4684946.

It can be written as a sum of positive squares in 2 ways, for example, as 1690000 + 4804864 = 1300^2 + 2192^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6494861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857 + ... + 3704.

It is an arithmetic number, because the mean of its divisors is an integer number (636399).

Almost surely, 2^6494864 is an apocalyptic number.

It is an amenable number.

6494864 is a deficient number, since it is larger than the sum of its proper divisors (6233116).

6494864 is a wasteful number, since it uses less digits than its factorization.

6494864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658 (or 4652 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 6494864 is about 2548.5023052766. The cubic root of 6494864 is about 186.5763905879.

It can be divided in two parts, 64 and 94864, that multiplied together give a square (6071296 = 2464²).

The spelling of 6494864 in words is "six million, four hundred ninety-four thousand, eight hundred sixty-four".