6665746 has 8 divisors (see below), whose sum is σ = 10012860. Its totient is φ = 3328128.

The previous prime is 6665741. The next prime is 6665773. The reversal of 6665746 is 6475666.

It can be written as a sum of positive squares in 2 ways, for example, as 5784025 + 881721 = 2405^2 + 939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6665699 and 6665708.

It is not an unprimeable number, because it can be changed into a prime (6665741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231 + ... + 3658.

Almost surely, 2^6665746 is an apocalyptic number.

6665746 is a deficient number, since it is larger than the sum of its proper divisors (3347114).

6665746 is a wasteful number, since it uses less digits than its factorization.

6665746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748.

The product of its digits is 181440, while the sum is 40.

The square root of 6665746 is about 2581.8106049825. The cubic root of 6665746 is about 188.1985415723.

The spelling of 6665746 in words is "six million, six hundred sixty-five thousand, seven hundred forty-six".