87042824 has 16 divisors (see below), whose sum is σ = 178042320. Its totient is φ = 39564880.

The previous prime is 87042821. The next prime is 87042827. The reversal of 87042824 is 42824078.

It is an interprime number because it is at equal distance from previous prime (87042821) and next prime (87042827).

It is not an unprimeable number, because it can be changed into a prime (87042821) 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, 494474 + ... + 494649.

It is an arithmetic number, because the mean of its divisors is an integer number (11127645).

Almost surely, 2^87042824 is an apocalyptic number.

It is an amenable number.

87042824 is an abundant number, since it is smaller than the sum of its proper divisors (90999496).

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

87042824 is a wasteful number, since it uses less digits than its factorization.

87042824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989140 (or 989136 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 87042824 is about 9329.6743780263. The cubic root of 87042824 is about 443.1774533791.

The spelling of 87042824 in words is "eighty-seven million, forty-two thousand, eight hundred twenty-four".