68738943 has 16 divisors (see below), whose sum is σ = 112802816. Its totient is φ = 36257760.

The previous prime is 68738911. The next prime is 68738951. The reversal of 68738943 is 34983786.

It is not a de Polignac number, because 68738943 - 2⁵ = 68738911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68738892 and 68738901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68738963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125623 + ... + 126168.

It is an arithmetic number, because the mean of its divisors is an integer number (7050176).

Almost surely, 2^68738943 is an apocalyptic number.

68738943 is a deficient number, since it is larger than the sum of its proper divisors (44063873).

68738943 is a wasteful number, since it uses less digits than its factorization.

68738943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251814.

The product of its digits is 870912, while the sum is 48.

The square root of 68738943 is about 8290.8951868903. The cubic root of 68738943 is about 409.6386723403.

The spelling of 68738943 in words is "sixty-eight million, seven hundred thirty-eight thousand, nine hundred forty-three".