87347712 has 160 divisors (see below), whose sum is σ = 254358720. Its totient is φ = 26542080.

The previous prime is 87347651. The next prime is 87347719. The reversal of 87347712 is 21774378.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87347719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196508 + ... + 1196580.

It is an arithmetic number, because the mean of its divisors is an integer number (1589742).

Almost surely, 2^87347712 is an apocalyptic number.

87347712 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87347712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127179360).

87347712 is an abundant number, since it is smaller than the sum of its proper divisors (167011008).

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

87347712 is a wasteful number, since it uses less digits than its factorization.

87347712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 138 counting only the distinct ones).

The product of its digits is 65856, while the sum is 39.

The square root of 87347712 is about 9345.9997860047. Note that the first 3 decimals coincide. The cubic root of 87347712 is about 443.6942948788.

The spelling of 87347712 in words is "eighty-seven million, three hundred forty-seven thousand, seven hundred twelve".