68225693 has 4 divisors (see below), whose sum is σ = 68579388. Its totient is φ = 67872000.

The previous prime is 68225683. The next prime is 68225723. The reversal of 68225693 is 39652286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33674809 + 34550884 = 5803^2 + 5878^2 .

It is a cyclic number.

It is not a de Polignac number, because 68225693 - 2²² = 64031389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68225693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68225683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176558 + ... + 176943.

It is an arithmetic number, because the mean of its divisors is an integer number (17144847).

Almost surely, 2^68225693 is an apocalyptic number.

It is an amenable number.

68225693 is a deficient number, since it is larger than the sum of its proper divisors (353695).

68225693 is a wasteful number, since it uses less digits than its factorization.

68225693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353694.

The product of its digits is 155520, while the sum is 41.

The square root of 68225693 is about 8259.8845633580. The cubic root of 68225693 is about 408.6165806330.

The spelling of 68225693 in words is "sixty-eight million, two hundred twenty-five thousand, six hundred ninety-three".