87195516 has 24 divisors (see below), whose sum is σ = 215424720. Its totient is φ = 27355392.

The previous prime is 87195509. The next prime is 87195523. The reversal of 87195516 is 61559178.

It is an interprime number because it is at equal distance from previous prime (87195509) and next prime (87195523).

It is a super-4 number, since 4×87195516⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213511 + ... + 213918.

It is an arithmetic number, because the mean of its divisors is an integer number (8976030).

Almost surely, 2^87195516 is an apocalyptic number.

It is an amenable number.

87195516 is an abundant number, since it is smaller than the sum of its proper divisors (128229204).

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

87195516 is a wasteful number, since it uses less digits than its factorization.

87195516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427453 (or 427451 counting only the distinct ones).

The product of its digits is 75600, while the sum is 42.

The square root of 87195516 is about 9337.8539290353. The cubic root of 87195516 is about 443.4364451337.

The spelling of 87195516 in words is "eighty-seven million, one hundred ninety-five thousand, five hundred sixteen".