72843512 has 32 divisors (see below), whose sum is σ = 156472320. Its totient is φ = 31142880.

The previous prime is 72843503. The next prime is 72843581. The reversal of 72843512 is 21534827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25937 + ... + 28607.

It is an arithmetic number, because the mean of its divisors is an integer number (4889760).

Almost surely, 2^72843512 is an apocalyptic number.

It is an amenable number.

72843512 is an abundant number, since it is smaller than the sum of its proper divisors (83628808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72843512 is a wasteful number, since it uses less digits than its factorization.

72843512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171 (or 3167 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 72843512 is about 8534.8410647182. The cubic root of 72843512 is about 417.6350683497.

The spelling of 72843512 in words is "seventy-two million, eight hundred forty-three thousand, five hundred twelve".