87120068 has 12 divisors (see below), whose sum is σ = 174240192. Its totient is φ = 37337160.

The previous prime is 87120029. The next prime is 87120091. The reversal of 87120068 is 86002178.

87120068 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1555688 + ... + 1555743.

It is an arithmetic number, because the mean of its divisors is an integer number (14520016).

Almost surely, 2^87120068 is an apocalyptic number.

It is an amenable number.

87120068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87120068 is a wasteful number, since it uses less digits than its factorization.

87120068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111442 (or 3111440 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 87120068 is about 9333.8131543330. The cubic root of 87120068 is about 443.3085102401.

The spelling of 87120068 in words is "eighty-seven million, one hundred twenty thousand, sixty-eight".