87100308 has 36 divisors (see below), whose sum is σ = 220458420. Its totient is φ = 28995456.

The previous prime is 87100301. The next prime is 87100337. The reversal of 87100308 is 80300178.

It can be written as a sum of positive squares in 2 ways, for example, as 63011844 + 24088464 = 7938^2 + 4908^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87100301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45466 + ... + 47342.

It is an arithmetic number, because the mean of its divisors is an integer number (6123845).

Almost surely, 2^87100308 is an apocalyptic number.

It is an amenable number.

87100308 is an abundant number, since it is smaller than the sum of its proper divisors (133358112).

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

87100308 is a wasteful number, since it uses less digits than its factorization.

87100308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176 (or 3171 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 87100308 is about 9332.7545772939. The cubic root of 87100308 is about 443.2749916003.

The spelling of 87100308 in words is "eighty-seven million, one hundred thousand, three hundred eight".