76564373 has 2 divisors, whose sum is σ = 76564374. Its totient is φ = 76564372.

The previous prime is 76564361. The next prime is 76564387. The reversal of 76564373 is 37346567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72965764 + 3598609 = 8542^2 + 1897^2 .

It is an emirp because it is prime and its reverse (37346567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76564373 - 2¹² = 76560277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76564373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76564573) 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 as a sum of consecutive naturals, namely, 38282186 + 38282187.

It is an arithmetic number, because the mean of its divisors is an integer number (38282187).

Almost surely, 2^76564373 is an apocalyptic number.

It is an amenable number.

76564373 is a deficient number, since it is larger than the sum of its proper divisors (1).

76564373 is an equidigital number, since it uses as much as digits as its factorization.

76564373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 41.

The square root of 76564373 is about 8750.1070279169. The cubic root of 76564373 is about 424.6282756598.

The spelling of 76564373 in words is "seventy-six million, five hundred sixty-four thousand, three hundred seventy-three".