68079247 has 2 divisors, whose sum is σ = 68079248. Its totient is φ = 68079246.

The previous prime is 68079199. The next prime is 68079251. The reversal of 68079247 is 74297086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68079247 - 2¹⁵ = 68046479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68079257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34039623 + 34039624.

It is an arithmetic number, because the mean of its divisors is an integer number (34039624).

Almost surely, 2^68079247 is an apocalyptic number.

68079247 is a deficient number, since it is larger than the sum of its proper divisors (1).

68079247 is an equidigital number, since it uses as much as digits as its factorization.

68079247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 68079247 is about 8251.0149072705. The cubic root of 68079247 is about 408.3240069322.

The spelling of 68079247 in words is "sixty-eight million, seventy-nine thousand, two hundred forty-seven".