68764573 has 2 divisors, whose sum is σ = 68764574. Its totient is φ = 68764572.

The previous prime is 68764529. The next prime is 68764583. The reversal of 68764573 is 37546786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61889689 + 6874884 = 7867^2 + 2622^2 .

It is a cyclic number.

It is not a de Polignac number, because 68764573 - 2⁹ = 68764061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68764583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34382286 + 34382287.

It is an arithmetic number, because the mean of its divisors is an integer number (34382287).

Almost surely, 2^68764573 is an apocalyptic number.

It is an amenable number.

68764573 is a deficient number, since it is larger than the sum of its proper divisors (1).

68764573 is an equidigital number, since it uses as much as digits as its factorization.

68764573 is an evil number, because the sum of its binary digits is even.

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

The square root of 68764573 is about 8292.4407142891. The cubic root of 68764573 is about 409.6895786345.

It can be divided in two parts, 6876 and 4573, that added together give a square (11449 = 107²).

The spelling of 68764573 in words is "sixty-eight million, seven hundred sixty-four thousand, five hundred seventy-three".