72859512 has 64 divisors (see below), whose sum is σ = 204105600. Its totient is φ = 21479040.

The previous prime is 72859511. The next prime is 72859529. The reversal of 72859512 is 21595827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72859511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6039 + ... + 13497.

It is an arithmetic number, because the mean of its divisors is an integer number (3189150).

Almost surely, 2^72859512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72859512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102052800).

72859512 is an abundant number, since it is smaller than the sum of its proper divisors (131246088).

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

72859512 is a wasteful number, since it uses less digits than its factorization.

72859512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516 (or 7512 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 72859512 is about 8535.7783476377. The cubic root of 72859512 is about 417.6656438109.

The spelling of 72859512 in words is "seventy-two million, eight hundred fifty-nine thousand, five hundred twelve".