68702947 has 2 divisors, whose sum is σ = 68702948. Its totient is φ = 68702946.

The previous prime is 68702911. The next prime is 68702951. The reversal of 68702947 is 74920786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68702947 - 2¹¹ = 68700899 is a prime.

It is not a weakly prime, because it can be changed into another prime (68702987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34351473 + 34351474.

It is an arithmetic number, because the mean of its divisors is an integer number (34351474).

Almost surely, 2^68702947 is an apocalyptic number.

68702947 is a deficient number, since it is larger than the sum of its proper divisors (1).

68702947 is an equidigital number, since it uses as much as digits as its factorization.

68702947 is an odious number, because the sum of its binary digits is odd.

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

The square root of 68702947 is about 8288.7240875783. The cubic root of 68702947 is about 409.5671557317.

The spelling of 68702947 in words is "sixty-eight million, seven hundred two thousand, nine hundred forty-seven".