68333845 has 4 divisors (see below), whose sum is σ = 82000620. Its totient is φ = 54667072.

The previous prime is 68333843. The next prime is 68333869. The reversal of 68333845 is 54833386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54833386 = 2 ⋅27416693.

It can be written as a sum of positive squares in 2 ways, for example, as 33074001 + 35259844 = 5751^2 + 5938^2 .

It is a cyclic number.

It is not a de Polignac number, because 68333845 - 2¹ = 68333843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68333798 and 68333807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68333843) 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, 6833380 + ... + 6833389.

It is an arithmetic number, because the mean of its divisors is an integer number (20500155).

Almost surely, 2^68333845 is an apocalyptic number.

It is an amenable number.

68333845 is a deficient number, since it is larger than the sum of its proper divisors (13666775).

68333845 is a wasteful number, since it uses less digits than its factorization.

68333845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13666774.

The product of its digits is 207360, while the sum is 40.

The square root of 68333845 is about 8266.4287936206. The cubic root of 68333845 is about 408.8323809054.

The spelling of 68333845 in words is "sixty-eight million, three hundred thirty-three thousand, eight hundred forty-five".