6489994 has 16 divisors (see below), whose sum is σ = 11160000. Its totient is φ = 2772864.

The previous prime is 6489991. The next prime is 6490007. The reversal of 6489994 is 4999846.

It is not an unprimeable number, because it can be changed into a prime (6489991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6522 + ... + 7450.

It is an arithmetic number, because the mean of its divisors is an integer number (697500).

Almost surely, 2^6489994 is an apocalyptic number.

6489994 is a deficient number, since it is larger than the sum of its proper divisors (4670006).

6489994 is a wasteful number, since it uses less digits than its factorization.

6489994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437.

The product of its digits is 559872, while the sum is 49.

The square root of 6489994 is about 2547.5466629681. The cubic root of 6489994 is about 186.5297458227.

It can be divided in two parts, 6 and 489994, that added together give a square (490000 = 700²).

The spelling of 6489994 in words is "six million, four hundred eighty-nine thousand, nine hundred ninety-four".