72875443 has 4 divisors (see below), whose sum is σ = 74110680. Its totient is φ = 71640208.

The previous prime is 72875441. The next prime is 72875471. The reversal of 72875443 is 34457827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34457827 = 17 ⋅2026931.

It is a cyclic number.

It is not a de Polignac number, because 72875443 - 2¹ = 72875441 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72875396 and 72875405.

It is not an unprimeable number, because it can be changed into a prime (72875441) 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, 617530 + ... + 617647.

It is an arithmetic number, because the mean of its divisors is an integer number (18527670).

Almost surely, 2^72875443 is an apocalyptic number.

72875443 is a deficient number, since it is larger than the sum of its proper divisors (1235237).

72875443 is a wasteful number, since it uses less digits than its factorization.

72875443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235236.

The product of its digits is 188160, while the sum is 40.

The square root of 72875443 is about 8536.7114862809. The cubic root of 72875443 is about 417.6960829683.

The spelling of 72875443 in words is "seventy-two million, eight hundred seventy-five thousand, four hundred forty-three".