73473503 has 4 divisors (see below), whose sum is σ = 75843648. Its totient is φ = 71103360.

The previous prime is 73473481. The next prime is 73473563. The reversal of 73473503 is 30537437.

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 73473503 - 2¹⁶ = 73407967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73473503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73473563) 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, 1185026 + ... + 1185087.

It is an arithmetic number, because the mean of its divisors is an integer number (18960912).

Almost surely, 2^73473503 is an apocalyptic number.

73473503 is a deficient number, since it is larger than the sum of its proper divisors (2370145).

73473503 is a wasteful number, since it uses less digits than its factorization.

73473503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370144.

The product of its (nonzero) digits is 26460, while the sum is 32.

The square root of 73473503 is about 8571.6686240195. The cubic root of 73473503 is about 418.8355937603.

The spelling of 73473503 in words is "seventy-three million, four hundred seventy-three thousand, five hundred three".