6349666 has 16 divisors (see below), whose sum is σ = 9979200. Its totient is φ = 3026128.

The previous prime is 6349663. The next prime is 6349669. The reversal of 6349666 is 6669436.

It is an interprime number because it is at equal distance from previous prime (6349663) and next prime (6349669).

It is not an unprimeable number, because it can be changed into a prime (6349663) 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, 4155 + ... + 5473.

It is an arithmetic number, because the mean of its divisors is an integer number (623700).

Almost surely, 2^6349666 is an apocalyptic number.

6349666 is a deficient number, since it is larger than the sum of its proper divisors (3629534).

6349666 is a wasteful number, since it uses less digits than its factorization.

6349666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433.

The product of its digits is 139968, while the sum is 40.

The square root of 6349666 is about 2519.8543608709. The cubic root of 6349666 is about 185.1755431414.

It can be divided in two parts, 63 and 49666, that added together give a square (49729 = 223²).

The spelling of 6349666 in words is "six million, three hundred forty-nine thousand, six hundred sixty-six".