6647274 has 12 divisors (see below), whose sum is σ = 14402466. Its totient is φ = 2215752.

The previous prime is 6647273. The next prime is 6647279. The reversal of 6647274 is 4727466.

6647274 is a `hidden beast` number, since 6 + 647 + 2 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4223025 + 2424249 = 2055^2 + 1557^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6647273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 184629 + ... + 184664.

Almost surely, 2^6647274 is an apocalyptic number.

6647274 is an abundant number, since it is smaller than the sum of its proper divisors (7755192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6647274 is a wasteful number, since it uses less digits than its factorization.

6647274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369301 (or 369298 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 6647274 is about 2578.2307887387. The cubic root of 6647274 is about 188.0245365591.

The spelling of 6647274 in words is "six million, six hundred forty-seven thousand, two hundred seventy-four".