6659474 has 4 divisors (see below), whose sum is σ = 9989214. Its totient is φ = 3329736.

The previous prime is 6659447. The next prime is 6659491. The reversal of 6659474 is 4749566.

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., 4818025 + 1841449 = 2195^2 + 1357^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664867 + ... + 1664870.

Almost surely, 2^6659474 is an apocalyptic number.

6659474 is a deficient number, since it is larger than the sum of its proper divisors (3329740).

6659474 is a wasteful number, since it uses less digits than its factorization.

6659474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329739.

The product of its digits is 181440, while the sum is 41.

The square root of 6659474 is about 2580.5956676705. The cubic root of 6659474 is about 188.1394958348.

The spelling of 6659474 in words is "six million, six hundred fifty-nine thousand, four hundred seventy-four".