68593889 has 24 divisors (see below), whose sum is σ = 88612992. Its totient is φ = 51891840.

The previous prime is 68593879. The next prime is 68593891. The reversal of 68593889 is 98839586.

It is not a de Polignac number, because 68593889 - 2¹² = 68589793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68593879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25949 + ... + 28469.

It is an arithmetic number, because the mean of its divisors is an integer number (3692208).

Almost surely, 2^68593889 is an apocalyptic number.

It is an amenable number.

68593889 is a deficient number, since it is larger than the sum of its proper divisors (20019103).

68593889 is a wasteful number, since it uses less digits than its factorization.

68593889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577 (or 2564 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 56.

The square root of 68593889 is about 8282.1427782911. The cubic root of 68593889 is about 409.3503274294.

The spelling of 68593889 in words is "sixty-eight million, five hundred ninety-three thousand, eight hundred eighty-nine".