73994513 has 4 divisors (see below), whose sum is σ = 74247348. Its totient is φ = 73741680.

The previous prime is 73994491. The next prime is 73994521. The reversal of 73994513 is 31549937.

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 33443089 + 40551424 = 5783^2 + 6368^2 .

It is a cyclic number.

It is not a de Polignac number, because 73994513 - 2⁶ = 73994449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73994593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125978 + ... + 126563.

It is an arithmetic number, because the mean of its divisors is an integer number (18561837).

Almost surely, 2^73994513 is an apocalyptic number.

It is an amenable number.

73994513 is a deficient number, since it is larger than the sum of its proper divisors (252835).

73994513 is a wasteful number, since it uses less digits than its factorization.

73994513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252834.

The product of its digits is 102060, while the sum is 41.

The square root of 73994513 is about 8602.0063357335. The cubic root of 73994513 is about 419.8232684252.

The spelling of 73994513 in words is "seventy-three million, nine hundred ninety-four thousand, five hundred thirteen".