87024144 has 20 divisors (see below), whose sum is σ = 224812496. Its totient is φ = 29008032.

The previous prime is 87024143. The next prime is 87024149. The reversal of 87024144 is 44142078.

It is not an unprimeable number, because it can be changed into a prime (87024143) 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, 906454 + ... + 906549.

Almost surely, 2^87024144 is an apocalyptic number.

It is an amenable number.

87024144 is an abundant number, since it is smaller than the sum of its proper divisors (137788352).

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

87024144 is a wasteful number, since it uses less digits than its factorization.

87024144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813014 (or 1813008 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 87024144 is about 9328.6732175589. The cubic root of 87024144 is about 443.1457481152.

The spelling of 87024144 in words is "eighty-seven million, twenty-four thousand, one hundred forty-four".