6690466 has 4 divisors (see below), whose sum is σ = 10035702. Its totient is φ = 3345232.

The previous prime is 6690433. The next prime is 6690473. The reversal of 6690466 is 6640966.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3884841 + 2805625 = 1971^2 + 1675^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672615 + ... + 1672618.

Almost surely, 2^6690466 is an apocalyptic number.

6690466 is a deficient number, since it is larger than the sum of its proper divisors (3345236).

6690466 is a wasteful number, since it uses less digits than its factorization.

6690466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345235.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 6690466 is about 2586.5935127113. The cubic root of 6690466 is about 188.4309000995.

The spelling of 6690466 in words is "six million, six hundred ninety thousand, four hundred sixty-six".