68484789 has 24 divisors (see below), whose sum is σ = 105362712. Its totient is φ = 42716160.

The previous prime is 68484763. The next prime is 68484791. The reversal of 68484789 is 98748486.

It can be written as a sum of positive squares in 4 ways, for example, as 7128900 + 61355889 = 2670^2 + 7833^2 .

It is not a de Polignac number, because 68484789 - 2¹⁷ = 68353717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68484739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26457 + ... + 28929.

It is an arithmetic number, because the mean of its divisors is an integer number (4390113).

Almost surely, 2^68484789 is an apocalyptic number.

It is an amenable number.

68484789 is a deficient number, since it is larger than the sum of its proper divisors (36877923).

68484789 is a wasteful number, since it uses less digits than its factorization.

68484789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677 (or 2674 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 68484789 is about 8275.5536974876. The cubic root of 68484789 is about 409.1331855434.

The spelling of 68484789 in words is "sixty-eight million, four hundred eighty-four thousand, seven hundred eighty-nine".