68676973 has 2 divisors, whose sum is σ = 68676974. Its totient is φ = 68676972.

The previous prime is 68676941. The next prime is 68676989. The reversal of 68676973 is 37967686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37785609 + 30891364 = 6147^2 + 5558^2 .

It is a cyclic number.

It is not a de Polignac number, because 68676973 - 2⁵ = 68676941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68676973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68676473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34338486 + 34338487.

It is an arithmetic number, because the mean of its divisors is an integer number (34338487).

Almost surely, 2^68676973 is an apocalyptic number.

It is an amenable number.

68676973 is a deficient number, since it is larger than the sum of its proper divisors (1).

68676973 is an equidigital number, since it uses as much as digits as its factorization.

68676973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 52.

The square root of 68676973 is about 8287.1571120620. The cubic root of 68676973 is about 409.5155352473.

The spelling of 68676973 in words is "sixty-eight million, six hundred seventy-six thousand, nine hundred seventy-three".