68388353 has 24 divisors (see below), whose sum is σ = 80055360. Its totient is φ = 58212000.

The previous prime is 68388349. The next prime is 68388367. The reversal of 68388353 is 35388386.

It is a happy number.

It is not a de Polignac number, because 68388353 - 2² = 68388349 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68388323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 347051 + ... + 347247.

It is an arithmetic number, because the mean of its divisors is an integer number (3335640).

Almost surely, 2^68388353 is an apocalyptic number.

It is an amenable number.

68388353 is a deficient number, since it is larger than the sum of its proper divisors (11667007).

68388353 is a wasteful number, since it uses less digits than its factorization.

68388353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 378 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 68388353 is about 8269.7250861199. The cubic root of 68388353 is about 408.9410567393.

The spelling of 68388353 in words is "sixty-eight million, three hundred eighty-eight thousand, three hundred fifty-three".