72543084 has 24 divisors (see below), whose sum is σ = 170563008. Its totient is φ = 23995920.

The previous prime is 72543077. The next prime is 72543101. The reversal of 72543084 is 48034527.

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, 21502 + ... + 24645.

It is an arithmetic number, because the mean of its divisors is an integer number (7106792).

Almost surely, 2^72543084 is an apocalyptic number.

It is an amenable number.

72543084 is an abundant number, since it is smaller than the sum of its proper divisors (98019924).

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

72543084 is a wasteful number, since it uses less digits than its factorization.

72543084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46285 (or 46283 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 72543084 is about 8517.2227868009. Note that the first 3 decimals coincide. The cubic root of 72543084 is about 417.0601273936.

The spelling of 72543084 in words is "seventy-two million, five hundred forty-three thousand, eighty-four".