6247663 has 4 divisors (see below), whose sum is σ = 6380640. Its totient is φ = 6114688.

The previous prime is 6247613. The next prime is 6247667. The reversal of 6247663 is 3667426.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6247663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6247667) 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, 66418 + ... + 66511.

It is an arithmetic number, because the mean of its divisors is an integer number (1595160).

Almost surely, 2^6247663 is an apocalyptic number.

6247663 is a deficient number, since it is larger than the sum of its proper divisors (132977).

6247663 is a wasteful number, since it uses less digits than its factorization.

6247663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132976.

The product of its digits is 36288, while the sum is 34.

The square root of 6247663 is about 2499.5325562993. The cubic root of 6247663 is about 184.1786131855.

The spelling of 6247663 in words is "six million, two hundred forty-seven thousand, six hundred sixty-three".