68713738 has 8 divisors (see below), whose sum is σ = 103336740. Its totient is φ = 34268160.

The previous prime is 68713727. The next prime is 68713739. The reversal of 68713738 is 83731786.

It can be written as a sum of positive squares in 2 ways, for example, as 67519089 + 1194649 = 8217^2 + 1093^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 68713694 and 68713703.

It is not an unprimeable number, because it can be changed into a prime (68713739) 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 3 ways as a sum of consecutive naturals, for example, 43383 + ... + 44938.

Almost surely, 2^68713738 is an apocalyptic number.

68713738 is a deficient number, since it is larger than the sum of its proper divisors (34623002).

68713738 is a wasteful number, since it uses less digits than its factorization.

68713738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88712.

The product of its digits is 169344, while the sum is 43.

The square root of 68713738 is about 8289.3750065973. The cubic root of 68713738 is about 409.5885978386.

It can be divided in two parts, 6871 and 3738, that added together give a square (10609 = 103²).

The spelling of 68713738 in words is "sixty-eight million, seven hundred thirteen thousand, seven hundred thirty-eight".