6557674 has 4 divisors (see below), whose sum is σ = 9836514. Its totient is φ = 3278836.

The previous prime is 6557671. The next prime is 6557687. The reversal of 6557674 is 4767556.

It is a happy number.

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., 4020025 + 2537649 = 2005^2 + 1593^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6557671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1639417 + ... + 1639420.

Almost surely, 2^6557674 is an apocalyptic number.

6557674 is a deficient number, since it is larger than the sum of its proper divisors (3278840).

6557674 is a wasteful number, since it uses less digits than its factorization.

6557674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278839.

The product of its digits is 176400, while the sum is 40.

The square root of 6557674 is about 2560.7955795026. The cubic root of 6557674 is about 187.1759047140.

The spelling of 6557674 in words is "six million, five hundred fifty-seven thousand, six hundred seventy-four".