6662247 has 4 divisors (see below), whose sum is σ = 8883000. Its totient is φ = 4441496.

The previous prime is 6662233. The next prime is 6662281. The reversal of 6662247 is 7422666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6662247 - 2⁴ = 6662231 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110372 + ... + 1110377.

It is an arithmetic number, because the mean of its divisors is an integer number (2220750).

Almost surely, 2^6662247 is an apocalyptic number.

6662247 is a deficient number, since it is larger than the sum of its proper divisors (2220753).

6662247 is a wasteful number, since it uses less digits than its factorization.

6662247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220752.

The product of its digits is 24192, while the sum is 33.

The square root of 6662247 is about 2581.1328908059. The cubic root of 6662247 is about 188.1656059263.

The spelling of 6662247 in words is "six million, six hundred sixty-two thousand, two hundred forty-seven".