68393243 has 2 divisors, whose sum is σ = 68393244. Its totient is φ = 68393242.

The previous prime is 68393219. The next prime is 68393251. The reversal of 68393243 is 34239386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68393243 - 2²⁶ = 1284379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68393197 and 68393206.

It is not a weakly prime, because it can be changed into another prime (68393443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34196621 + 34196622.

It is an arithmetic number, because the mean of its divisors is an integer number (34196622).

Almost surely, 2^68393243 is an apocalyptic number.

68393243 is a deficient number, since it is larger than the sum of its proper divisors (1).

68393243 is an equidigital number, since it uses as much as digits as its factorization.

68393243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The square root of 68393243 is about 8270.0207375798. The cubic root of 68393243 is about 408.9508033995.

The spelling of 68393243 in words is "sixty-eight million, three hundred ninety-three thousand, two hundred forty-three".