73988563 has 4 divisors (see below), whose sum is σ = 80714808. Its totient is φ = 67262320.

The previous prime is 73988561. The next prime is 73988591. The reversal of 73988563 is 36588937.

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 73988563 - 2¹ = 73988561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73988561) 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, 3363106 + ... + 3363127.

It is an arithmetic number, because the mean of its divisors is an integer number (20178702).

Almost surely, 2^73988563 is an apocalyptic number.

73988563 is a deficient number, since it is larger than the sum of its proper divisors (6726245).

73988563 is a wasteful number, since it uses less digits than its factorization.

73988563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726244.

The product of its digits is 1088640, while the sum is 49.

The square root of 73988563 is about 8601.6604792331. The cubic root of 73988563 is about 419.8120152692.

The spelling of 73988563 in words is "seventy-three million, nine hundred eighty-eight thousand, five hundred sixty-three".