68244947 has 2 divisors, whose sum is σ = 68244948. Its totient is φ = 68244946.

The previous prime is 68244931. The next prime is 68244949. The reversal of 68244947 is 74944286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68244947 - 2⁴ = 68244931 is a prime.

Together with 68244949, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68244898 and 68244907.

It is not a weakly prime, because it can be changed into another prime (68244949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34122473 + 34122474.

It is an arithmetic number, because the mean of its divisors is an integer number (34122474).

Almost surely, 2^68244947 is an apocalyptic number.

68244947 is a deficient number, since it is larger than the sum of its proper divisors (1).

68244947 is an equidigital number, since it uses as much as digits as its factorization.

68244947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 44.

The square root of 68244947 is about 8261.0499937962. The cubic root of 68244947 is about 408.6550156336.

The spelling of 68244947 in words is "sixty-eight million, two hundred forty-four thousand, nine hundred forty-seven".