87243672 has 64 divisors (see below), whose sum is σ = 226944000. Its totient is φ = 27918720.

The previous prime is 87243659. The next prime is 87243683. The reversal of 87243672 is 27634278.

It is a super-2 number, since 2×87243672² = 15222916608087168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87243672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110463 + ... + 111249.

It is an arithmetic number, because the mean of its divisors is an integer number (3546000).

Almost surely, 2^87243672 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 87243672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113472000).

87243672 is an abundant number, since it is smaller than the sum of its proper divisors (139700328).

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

87243672 is a wasteful number, since it uses less digits than its factorization.

87243672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 972 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 87243672 is about 9340.4321099187. The cubic root of 87243672 is about 443.5180632280.

It can be divided in two parts, 872 and 43672, that added together give a palindrome (44544).

The spelling of 87243672 in words is "eighty-seven million, two hundred forty-three thousand, six hundred seventy-two".