68838357 has 16 divisors (see below), whose sum is σ = 105828480. Its totient is φ = 38986752.

The previous prime is 68838347. The next prime is 68838359. The reversal of 68838357 is 75383886.

It is a happy number.

It is not a de Polignac number, because 68838357 - 2⁶ = 68838293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68838359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12132 + ... + 16877.

It is an arithmetic number, because the mean of its divisors is an integer number (6614280).

Almost surely, 2^68838357 is an apocalyptic number.

It is an amenable number.

68838357 is a deficient number, since it is larger than the sum of its proper divisors (36990123).

68838357 is a wasteful number, since it uses less digits than its factorization.

68838357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29132.

The product of its digits is 967680, while the sum is 48.

The square root of 68838357 is about 8296.8883926446. Note that the first 3 decimals coincide. The cubic root of 68838357 is about 409.8360577942.

The spelling of 68838357 in words is "sixty-eight million, eight hundred thirty-eight thousand, three hundred fifty-seven".