68253047 has 2 divisors, whose sum is σ = 68253048. Its totient is φ = 68253046.

The previous prime is 68253043. The next prime is 68253179. The reversal of 68253047 is 74035286.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68253047 - 2² = 68253043 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68252998 and 68253016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68253043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34126523 + 34126524.

It is an arithmetic number, because the mean of its divisors is an integer number (34126524).

Almost surely, 2^68253047 is an apocalyptic number.

68253047 is a deficient number, since it is larger than the sum of its proper divisors (1).

68253047 is an equidigital number, since it uses as much as digits as its factorization.

68253047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 68253047 is about 8261.5402317001. The cubic root of 68253047 is about 408.6711827631.

The spelling of 68253047 in words is "sixty-eight million, two hundred fifty-three thousand, forty-seven".