6690224 has 20 divisors (see below), whose sum is σ = 13020744. Its totient is φ = 3330048.

The previous prime is 6690221. The next prime is 6690227. The reversal of 6690224 is 4220966.

It is an interprime number because it is at equal distance from previous prime (6690221) and next prime (6690227).

It is not an unprimeable number, because it can be changed into a prime (6690221) 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, 3299 + ... + 4925.

Almost surely, 2^6690224 is an apocalyptic number.

It is an amenable number.

6690224 is a deficient number, since it is larger than the sum of its proper divisors (6330520).

6690224 is a wasteful number, since it uses less digits than its factorization.

6690224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1886 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6690224 is about 2586.5467326147. The cubic root of 6690224 is about 188.4286281687.

The spelling of 6690224 in words is "six million, six hundred ninety thousand, two hundred twenty-four".