68663583 has 12 divisors (see below), whose sum is σ = 99311160. Its totient is φ = 45715536.

The previous prime is 68663563. The next prime is 68663593. The reversal of 68663583 is 38536686.

68663583 is a `hidden beast` number, since 6 + 8 + 6 + 63 + 583 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-68663583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68663563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2860 + ... + 12062.

It is an arithmetic number, because the mean of its divisors is an integer number (8275930).

Almost surely, 2^68663583 is an apocalyptic number.

68663583 is a deficient number, since it is larger than the sum of its proper divisors (30647577).

68663583 is a wasteful number, since it uses less digits than its factorization.

68663583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10038 (or 10035 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 68663583 is about 8286.3491961177. The cubic root of 68663583 is about 409.4889190023.

The spelling of 68663583 in words is "sixty-eight million, six hundred sixty-three thousand, five hundred eighty-three".