72759443 has 4 divisors (see below), whose sum is σ = 73332480. Its totient is φ = 72186408.

The previous prime is 72759437. The next prime is 72759499. The reversal of 72759443 is 34495727.

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 72759443 - 2⁸ = 72759187 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 72759443.

It is not an unprimeable number, because it can be changed into a prime (72759403) 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, 286328 + ... + 286581.

It is an arithmetic number, because the mean of its divisors is an integer number (18333120).

Almost surely, 2^72759443 is an apocalyptic number.

72759443 is a deficient number, since it is larger than the sum of its proper divisors (573037).

72759443 is a wasteful number, since it uses less digits than its factorization.

72759443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573036.

The product of its digits is 211680, while the sum is 41.

The square root of 72759443 is about 8529.9145951176. The cubic root of 72759443 is about 417.4743417126.

The spelling of 72759443 in words is "seventy-two million, seven hundred fifty-nine thousand, four hundred forty-three".