72203443 has 16 divisors (see below), whose sum is σ = 80057376. Its totient is φ = 64707840.

The previous prime is 72203429. The next prime is 72203447. The reversal of 72203443 is 34430227.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72203443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72203447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65271 + ... + 66367.

It is an arithmetic number, because the mean of its divisors is an integer number (5003586).

Almost surely, 2^72203443 is an apocalyptic number.

72203443 is a deficient number, since it is larger than the sum of its proper divisors (7853933).

72203443 is a wasteful number, since it uses less digits than its factorization.

72203443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254.

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

The square root of 72203443 is about 8497.2609116115. The cubic root of 72203443 is about 416.4082280737.

The spelling of 72203443 in words is "seventy-two million, two hundred three thousand, four hundred forty-three".