87654544 has 20 divisors (see below), whose sum is σ = 170078524. Its totient is φ = 43763328.

The previous prime is 87654521. The next prime is 87654547. The reversal of 87654544 is 44545678.

It can be written as a sum of positive squares in 2 ways, for example, as 56070144 + 31584400 = 7488^2 + 5620^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87654544.

It is not an unprimeable number, because it can be changed into a prime (87654547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8494 + ... + 15730.

Almost surely, 2^87654544 is an apocalyptic number.

It is an amenable number.

87654544 is a deficient number, since it is larger than the sum of its proper divisors (82423980).

87654544 is a wasteful number, since it uses less digits than its factorization.

87654544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8002 (or 7996 counting only the distinct ones).

The product of its digits is 537600, while the sum is 43.

The square root of 87654544 is about 9362.4005468683. The cubic root of 87654544 is about 444.2132190205.

The spelling of 87654544 in words is "eighty-seven million, six hundred fifty-four thousand, five hundred forty-four".