87683620 has 24 divisors (see below), whose sum is σ = 194967864. Its totient is φ = 33010176.

The previous prime is 87683581. The next prime is 87683627. The reversal of 87683620 is 2638678.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9290304 + 78393316 = 3048^2 + 8854^2 .

It is not an unprimeable number, because it can be changed into a prime (87683627) 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 7 ways as a sum of consecutive naturals, for example, 128607 + ... + 129286.

It is an arithmetic number, because the mean of its divisors is an integer number (8123661).

Almost surely, 2^87683620 is an apocalyptic number.

It is an amenable number.

87683620 is an abundant number, since it is smaller than the sum of its proper divisors (107284244).

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

87683620 is a wasteful number, since it uses less digits than its factorization.

87683620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257919 (or 257917 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 87683620 is about 9363.9532250006. The cubic root of 87683620 is about 444.2623304341.

The spelling of 87683620 in words is "eighty-seven million, six hundred eighty-three thousand, six hundred twenty".