87716672 has 14 divisors (see below), whose sum is σ = 174062898. Its totient is φ = 43858304.

The previous prime is 87716669. The next prime is 87716729. The reversal of 87716672 is 27661778.

It can be written as a sum of positive squares in only one way, i.e., 67502656 + 20214016 = 8216^2 + 4496^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685223 + ... + 685350.

Almost surely, 2^87716672 is an apocalyptic number.

It is an amenable number.

87716672 is a deficient number, since it is larger than the sum of its proper divisors (86346226).

87716672 is a wasteful number, since it uses less digits than its factorization.

87716672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370585 (or 1370575 counting only the distinct ones).

The product of its digits is 197568, while the sum is 44.

The square root of 87716672 is about 9365.7179116179. The cubic root of 87716672 is about 444.3181444084.

It can be divided in two parts, 87716 and 672, that added together give a palindrome (88388).

The spelling of 87716672 in words is "eighty-seven million, seven hundred sixteen thousand, six hundred seventy-two".