68909589 has 16 divisors (see below), whose sum is σ = 116672640. Its totient is φ = 39376800.

The previous prime is 68909579. The next prime is 68909611. The reversal of 68909589 is 98590986.

It is not a de Polignac number, because 68909589 - 2⁵ = 68909557 is a prime.

It is a super-2 number, since 2×68909589² = 9497062912297842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68909549) 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 15 ways as a sum of consecutive naturals, for example, 182112 + ... + 182489.

It is an arithmetic number, because the mean of its divisors is an integer number (7292040).

Almost surely, 2^68909589 is an apocalyptic number.

It is an amenable number.

68909589 is a deficient number, since it is larger than the sum of its proper divisors (47763051).

68909589 is a wasteful number, since it uses less digits than its factorization.

68909589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364617 (or 364611 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 68909589 is about 8301.1799763648. The cubic root of 68909589 is about 409.9773713468.

The spelling of 68909589 in words is "sixty-eight million, nine hundred nine thousand, five hundred eighty-nine".