87029824 has 28 divisors (see below), whose sum is σ = 197372224. Its totient is φ = 37298304.

The previous prime is 87029801. The next prime is 87029827. The reversal of 87029824 is 42892078.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (87029827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96684 + ... + 97579.

It is an arithmetic number, because the mean of its divisors is an integer number (7049008).

Almost surely, 2^87029824 is an apocalyptic number.

It is an amenable number.

87029824 is an abundant number, since it is smaller than the sum of its proper divisors (110342400).

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

87029824 is a wasteful number, since it uses less digits than its factorization.

87029824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194282 (or 194272 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 87029824 is about 9328.9776503109. The cubic root of 87029824 is about 443.1553891680.

The spelling of 87029824 in words is "eighty-seven million, twenty-nine thousand, eight hundred twenty-four".