73115963 has 4 divisors (see below), whose sum is σ = 77416920. Its totient is φ = 68815008.

The previous prime is 73115909. The next prime is 73115993. The reversal of 73115963 is 36951137.

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

It is a cyclic number.

It is not a de Polignac number, because 73115963 - 2⁶ = 73115899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73115993) 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, 2150453 + ... + 2150486.

It is an arithmetic number, because the mean of its divisors is an integer number (19354230).

Almost surely, 2^73115963 is an apocalyptic number.

73115963 is a deficient number, since it is larger than the sum of its proper divisors (4300957).

73115963 is a wasteful number, since it uses less digits than its factorization.

73115963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300956.

The product of its digits is 17010, while the sum is 35.

The square root of 73115963 is about 8550.7872736959. The cubic root of 73115963 is about 418.1551033415.

The spelling of 73115963 in words is "seventy-three million, one hundred fifteen thousand, nine hundred sixty-three".