68855293 has 8 divisors (see below), whose sum is σ = 74409048. Its totient is φ = 63338304.

The previous prime is 68855291. The next prime is 68855299. The reversal of 68855293 is 39255886.

It can be written as a sum of positive squares in 4 ways, for example, as 34316164 + 34539129 = 5858^2 + 5877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68855293 - 2¹ = 68855291 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 (68855291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5230 + ... + 12847.

It is an arithmetic number, because the mean of its divisors is an integer number (9301131).

Almost surely, 2^68855293 is an apocalyptic number.

It is an amenable number.

68855293 is a deficient number, since it is larger than the sum of its proper divisors (5553755).

68855293 is a wasteful number, since it uses less digits than its factorization.

68855293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18383.

The product of its digits is 518400, while the sum is 46.

The square root of 68855293 is about 8297.9089534653. The cubic root of 68855293 is about 409.8696650961.

The spelling of 68855293 in words is "sixty-eight million, eight hundred fifty-five thousand, two hundred ninety-three".