68773633 has 2 divisors, whose sum is σ = 68773634. Its totient is φ = 68773632.

The previous prime is 68773631. The next prime is 68773637. The reversal of 68773633 is 33637786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62362609 + 6411024 = 7897^2 + 2532^2 .

It is a cyclic number.

It is not a de Polignac number, because 68773633 - 2¹ = 68773631 is a prime.

Together with 68773631, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68773633.

It is not a weakly prime, because it can be changed into another prime (68773631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34386816 + 34386817.

It is an arithmetic number, because the mean of its divisors is an integer number (34386817).

Almost surely, 2^68773633 is an apocalyptic number.

It is an amenable number.

68773633 is a deficient number, since it is larger than the sum of its proper divisors (1).

68773633 is an equidigital number, since it uses as much as digits as its factorization.

68773633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 43.

The square root of 68773633 is about 8292.9869769583. The cubic root of 68773633 is about 409.7075705762.

The spelling of 68773633 in words is "sixty-eight million, seven hundred seventy-three thousand, six hundred thirty-three".