68764369 has 2 divisors, whose sum is σ = 68764370. Its totient is φ = 68764368.

The previous prime is 68764361. The next prime is 68764379. The reversal of 68764369 is 96346786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68674369 + 90000 = 8287^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 68764369 - 2³ = 68764361 is a prime.

It is a super-2 number, since 2×68764369² = 9457076887936322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68764361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34382184 + 34382185.

It is an arithmetic number, because the mean of its divisors is an integer number (34382185).

Almost surely, 2^68764369 is an apocalyptic number.

It is an amenable number.

68764369 is a deficient number, since it is larger than the sum of its proper divisors (1).

68764369 is an equidigital number, since it uses as much as digits as its factorization.

68764369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 68764369 is about 8292.4284139207. The cubic root of 68764369 is about 409.6891734997.

It can be divided in two parts, 687 and 64369, that added together give a palindrome (65056).

The spelling of 68764369 in words is "sixty-eight million, seven hundred sixty-four thousand, three hundred sixty-nine".