73189563 has 4 divisors (see below), whose sum is σ = 97586088. Its totient is φ = 48793040.

The previous prime is 73189561. The next prime is 73189583. The reversal of 73189563 is 36598137.

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 73189563 - 2¹ = 73189561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73189561) 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, 12198258 + ... + 12198263.

It is an arithmetic number, because the mean of its divisors is an integer number (24396522).

Almost surely, 2^73189563 is an apocalyptic number.

73189563 is a deficient number, since it is larger than the sum of its proper divisors (24396525).

73189563 is a wasteful number, since it uses less digits than its factorization.

73189563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24396524.

The product of its digits is 136080, while the sum is 42.

The square root of 73189563 is about 8555.0898884816. The cubic root of 73189563 is about 418.2953640701.

The spelling of 73189563 in words is "seventy-three million, one hundred eighty-nine thousand, five hundred sixty-three".