73368513 has 12 divisors (see below), whose sum is σ = 106517268. Its totient is φ = 48662880.

The previous prime is 73368511. The next prime is 73368523. The reversal of 73368513 is 31586337.

It can be written as a sum of positive squares in 2 ways, for example, as 61027344 + 12341169 = 7812^2 + 3513^2 .

It is not a de Polignac number, because 73368513 - 2¹ = 73368511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73368511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18918 + ... + 22463.

It is an arithmetic number, because the mean of its divisors is an integer number (8876439).

Almost surely, 2^73368513 is an apocalyptic number.

It is an amenable number.

73368513 is a deficient number, since it is larger than the sum of its proper divisors (33148755).

73368513 is a wasteful number, since it uses less digits than its factorization.

73368513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41584 (or 41581 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 73368513 is about 8565.5421894939. The cubic root of 73368513 is about 418.6360002145.

The spelling of 73368513 in words is "seventy-three million, three hundred sixty-eight thousand, five hundred thirteen".