6281663 has 2 divisors, whose sum is σ = 6281664. Its totient is φ = 6281662.

The previous prime is 6281659. The next prime is 6281669. The reversal of 6281663 is 3661826.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6281663 - 2² = 6281659 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6281669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3140831 + 3140832.

It is an arithmetic number, because the mean of its divisors is an integer number (3140832).

Almost surely, 2^6281663 is an apocalyptic number.

6281663 is a deficient number, since it is larger than the sum of its proper divisors (1).

6281663 is an equidigital number, since it uses as much as digits as its factorization.

6281663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 6281663 is about 2506.3245998873. The cubic root of 6281663 is about 184.5121110921.

The spelling of 6281663 in words is "six million, two hundred eighty-one thousand, six hundred sixty-three".