68930384 has 20 divisors (see below), whose sum is σ = 133825140. Its totient is φ = 34394880.

The previous prime is 68930383. The next prime is 68930387. The reversal of 68930384 is 48303986.

It can be written as a sum of positive squares in 2 ways, for example, as 43930384 + 25000000 = 6628^2 + 5000^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68930383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4202 + ... + 12470.

It is an arithmetic number, because the mean of its divisors is an integer number (6691257).

Almost surely, 2^68930384 is an apocalyptic number.

It is an amenable number.

68930384 is a deficient number, since it is larger than the sum of its proper divisors (64894756).

68930384 is a wasteful number, since it uses less digits than its factorization.

68930384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8798 (or 8792 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 68930384 is about 8302.4324146602. The cubic root of 68930384 is about 410.0186071270.

The spelling of 68930384 in words is "sixty-eight million, nine hundred thirty thousand, three hundred eighty-four".