87005900 has 18 divisors (see below), whose sum is σ = 188803020. Its totient is φ = 34802320.

The previous prime is 87005879. The next prime is 87005909. The reversal of 87005900 is 950078.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87005909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 434930 + ... + 435129.

Almost surely, 2^87005900 is an apocalyptic number.

It is an amenable number.

87005900 is an abundant number, since it is smaller than the sum of its proper divisors (101797120).

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

87005900 is a wasteful number, since it uses less digits than its factorization.

87005900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870073 (or 870066 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 87005900 is about 9327.6953209247. The cubic root of 87005900 is about 443.1147784874.

Adding to 87005900 its reverse (950078), we get a palindrome (87955978).

The spelling of 87005900 in words is "eighty-seven million, five thousand, nine hundred".