6404674 has 4 divisors (see below), whose sum is σ = 9607014. Its totient is φ = 3202336.

The previous prime is 6404669. The next prime is 6404677. The reversal of 6404674 is 4764046.

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., 4601025 + 1803649 = 2145^2 + 1343^2 .

It is not an unprimeable number, because it can be changed into a prime (6404677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601167 + ... + 1601170.

Almost surely, 2^6404674 is an apocalyptic number.

6404674 is a deficient number, since it is larger than the sum of its proper divisors (3202340).

6404674 is a wasteful number, since it uses less digits than its factorization.

6404674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202339.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 6404674 is about 2530.7457398957. The cubic root of 6404674 is about 185.7087398175.

The spelling of 6404674 in words is "six million, four hundred four thousand, six hundred seventy-four".