87583828 has 12 divisors (see below), whose sum is σ = 158557140. Its totient is φ = 42281792.

The previous prime is 87583817. The next prime is 87583829. The reversal of 87583828 is 82838578.

It can be written as a sum of positive squares in 2 ways, for example, as 44916804 + 42667024 = 6702^2 + 6532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87583829) 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, 377401 + ... + 377632.

It is an arithmetic number, because the mean of its divisors is an integer number (13213095).

Almost surely, 2^87583828 is an apocalyptic number.

It is an amenable number.

87583828 is a deficient number, since it is larger than the sum of its proper divisors (70973312).

87583828 is a wasteful number, since it uses less digits than its factorization.

87583828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755066 (or 755064 counting only the distinct ones).

The product of its digits is 860160, while the sum is 49.

The square root of 87583828 is about 9358.6231893372. The cubic root of 87583828 is about 444.0937293667.

The spelling of 87583828 in words is "eighty-seven million, five hundred eighty-three thousand, eight hundred twenty-eight".