87516205 has 24 divisors (see below), whose sum is σ = 122578272. Its totient is φ = 59808672.

The previous prime is 87516203. The next prime is 87516227. The reversal of 87516205 is 50261578.

It is not a de Polignac number, because 87516205 - 2¹ = 87516203 is a prime.

It is a super-2 number, since 2×87516205² = 15318172275204050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87516203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127794 + ... + 128476.

It is an arithmetic number, because the mean of its divisors is an integer number (5107428).

Almost surely, 2^87516205 is an apocalyptic number.

It is an amenable number.

87516205 is a deficient number, since it is larger than the sum of its proper divisors (35062067).

87516205 is a wasteful number, since it uses less digits than its factorization.

87516205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 87516205 is about 9355.0096205188. The cubic root of 87516205 is about 443.9794058164.

The spelling of 87516205 in words is "eighty-seven million, five hundred sixteen thousand, two hundred five".