76568213 has 4 divisors (see below), whose sum is σ = 77428620. Its totient is φ = 75707808.

The previous prime is 76568209. The next prime is 76568287. The reversal of 76568213 is 31286567.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17247409 + 59320804 = 4153^2 + 7702^2 .

It is a cyclic number.

It is not a de Polignac number, because 76568213 - 2² = 76568209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76568293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430070 + ... + 430247.

It is an arithmetic number, because the mean of its divisors is an integer number (19357155).

Almost surely, 2^76568213 is an apocalyptic number.

It is an amenable number.

76568213 is a deficient number, since it is larger than the sum of its proper divisors (860407).

76568213 is an equidigital number, since it uses as much as digits as its factorization.

76568213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860406.

The product of its digits is 60480, while the sum is 38.

The square root of 76568213 is about 8750.3264510531. The cubic root of 76568213 is about 424.6353744590.

The spelling of 76568213 in words is "seventy-six million, five hundred sixty-eight thousand, two hundred thirteen".