68669583 has 4 divisors (see below), whose sum is σ = 91559448. Its totient is φ = 45779720.

The previous prime is 68669561. The next prime is 68669663. The reversal of 68669583 is 38596686.

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 68669583 - 2⁵ = 68669551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68669683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11444928 + ... + 11444933.

It is an arithmetic number, because the mean of its divisors is an integer number (22889862).

Almost surely, 2^68669583 is an apocalyptic number.

68669583 is a deficient number, since it is larger than the sum of its proper divisors (22889865).

68669583 is a wasteful number, since it uses less digits than its factorization.

68669583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22889864.

The product of its digits is 1866240, while the sum is 51.

The square root of 68669583 is about 8286.7112294323. The cubic root of 68669583 is about 409.5008460522.

The spelling of 68669583 in words is "sixty-eight million, six hundred sixty-nine thousand, five hundred eighty-three".