68702938 has 8 divisors (see below), whose sum is σ = 103098132. Its totient is φ = 34336896.

The previous prime is 68702911. The next prime is 68702947. The reversal of 68702938 is 83920786.

It can be written as a sum of positive squares in 2 ways, for example, as 64529089 + 4173849 = 8033^2 + 2043^2 .

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 = 68702894 and 68702903.

It is an unprimeable number.

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, 106 + ... + 11722.

Almost surely, 2^68702938 is an apocalyptic number.

68702938 is a deficient number, since it is larger than the sum of its proper divisors (34395194).

68702938 is a wasteful number, since it uses less digits than its factorization.

68702938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14576.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 68702938 is about 8288.7235446720. The cubic root of 68702938 is about 409.5671378474.

The spelling of 68702938 in words is "sixty-eight million, seven hundred two thousand, nine hundred thirty-eight".