6664274 has 4 divisors (see below), whose sum is σ = 9996414. Its totient is φ = 3332136.

The previous prime is 6664261. The next prime is 6664277. The reversal of 6664274 is 4724666.

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., 6538249 + 126025 = 2557^2 + 355^2 .

It is not an unprimeable number, because it can be changed into a prime (6664277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1666067 + ... + 1666070.

Almost surely, 2^6664274 is an apocalyptic number.

6664274 is a deficient number, since it is larger than the sum of its proper divisors (3332140).

6664274 is a wasteful number, since it uses less digits than its factorization.

6664274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332139.

The product of its digits is 48384, while the sum is 35.

The square root of 6664274 is about 2581.5255179835. The cubic root of 6664274 is about 188.1846872266.

The spelling of 6664274 in words is "six million, six hundred sixty-four thousand, two hundred seventy-four".