68775293 has 4 divisors (see below), whose sum is σ = 68837340. Its totient is φ = 68713248.

The previous prime is 68775283. The next prime is 68775323. The reversal of 68775293 is 39257786.

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 6017209 + 62758084 = 2453^2 + 7922^2 .

It is a cyclic number.

It is not a de Polignac number, because 68775293 - 2⁴ = 68775277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68775253) 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, 29330 + ... + 31587.

It is an arithmetic number, because the mean of its divisors is an integer number (17209335).

Almost surely, 2^68775293 is an apocalyptic number.

It is an amenable number.

68775293 is a deficient number, since it is larger than the sum of its proper divisors (62047).

68775293 is a wasteful number, since it uses less digits than its factorization.

68775293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62046.

The product of its digits is 635040, while the sum is 47.

The square root of 68775293 is about 8293.0870609201. The cubic root of 68775293 is about 409.7108669417.

The spelling of 68775293 in words is "sixty-eight million, seven hundred seventy-five thousand, two hundred ninety-three".