73204243 has 4 divisors (see below), whose sum is σ = 83662000. Its totient is φ = 62746488.

The previous prime is 73204231. The next prime is 73204247. The reversal of 73204243 is 34240237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34240237 = 59 ⋅580343.

It is not a de Polignac number, because 73204243 - 2¹⁷ = 73073171 is a prime.

It is a super-2 number, since 2×73204243² = 10717722386406098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73204247) 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, 5228868 + ... + 5228881.

It is an arithmetic number, because the mean of its divisors is an integer number (20915500).

Almost surely, 2^73204243 is an apocalyptic number.

73204243 is a deficient number, since it is larger than the sum of its proper divisors (10457757).

73204243 is a wasteful number, since it uses less digits than its factorization.

73204243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10457756.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 73204243 is about 8555.9478142401. The cubic root of 73204243 is about 418.3233287379.

The spelling of 73204243 in words is "seventy-three million, two hundred four thousand, two hundred forty-three".