87844620 has 48 divisors (see below), whose sum is σ = 246677760. Its totient is φ = 23357376.

The previous prime is 87844579. The next prime is 87844621. The reversal of 87844620 is 2644878.

It is not an unprimeable number, because it can be changed into a prime (87844621) 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 15 ways as a sum of consecutive naturals, for example, 20809 + ... + 24671.

It is an arithmetic number, because the mean of its divisors is an integer number (5139120).

Almost surely, 2^87844620 is an apocalyptic number.

It is an amenable number.

87844620 is an abundant number, since it is smaller than the sum of its proper divisors (158833140).

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

87844620 is a wasteful number, since it uses less digits than its factorization.

87844620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254 (or 4252 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 87844620 is about 9372.5460788411. The cubic root of 87844620 is about 444.5340744696.

The spelling of 87844620 in words is "eighty-seven million, eight hundred forty-four thousand, six hundred twenty".