72593443 has 6 divisors (see below), whose sum is σ = 78607284. Its totient is φ = 67009176.

The previous prime is 72593419. The next prime is 72593449. The reversal of 72593443 is 34439527.

It is a de Polignac number, because none of the positive numbers 2^k-72593443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72593449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214605 + ... + 214942.

It is an arithmetic number, because the mean of its divisors is an integer number (13101214).

Almost surely, 2^72593443 is an apocalyptic number.

72593443 is a deficient number, since it is larger than the sum of its proper divisors (6013841).

72593443 is a wasteful number, since it uses less digits than its factorization.

72593443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429573 (or 429560 counting only the distinct ones).

The product of its digits is 90720, while the sum is 37.

The square root of 72593443 is about 8520.1785779407. The cubic root of 72593443 is about 417.1566120005.

The spelling of 72593443 in words is "seventy-two million, five hundred ninety-three thousand, four hundred forty-three".