72000543 has 8 divisors (see below), whose sum is σ = 96310656. Its totient is φ = 47845400.

The previous prime is 72000529. The next prime is 72000571. The reversal of 72000543 is 34500027.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72000543 - 2⁶ = 72000479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72000503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37653 + ... + 39518.

It is an arithmetic number, because the mean of its divisors is an integer number (12038832).

Almost surely, 2^72000543 is an apocalyptic number.

72000543 is a deficient number, since it is larger than the sum of its proper divisors (24310113).

72000543 is a wasteful number, since it uses less digits than its factorization.

72000543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77485.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 72000543 is about 8485.3133707601. The cubic root of 72000543 is about 416.0178104277.

The spelling of 72000543 in words is "seventy-two million, five hundred forty-three", and thus it is an aban number.