68774653 has 2 divisors, whose sum is σ = 68774654. Its totient is φ = 68774652.

The previous prime is 68774621. The next prime is 68774659. The reversal of 68774653 is 35647786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67026969 + 1747684 = 8187^2 + 1322^2 .

It is a cyclic number.

It is not a de Polignac number, because 68774653 - 2⁵ = 68774621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68774659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34387326 + 34387327.

It is an arithmetic number, because the mean of its divisors is an integer number (34387327).

Almost surely, 2^68774653 is an apocalyptic number.

It is an amenable number.

68774653 is a deficient number, since it is larger than the sum of its proper divisors (1).

68774653 is an equidigital number, since it uses as much as digits as its factorization.

68774653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 46.

The square root of 68774653 is about 8293.0484744755. The cubic root of 68774653 is about 409.7095960601.

The spelling of 68774653 in words is "sixty-eight million, seven hundred seventy-four thousand, six hundred fifty-three".