87148868 has 24 divisors (see below), whose sum is σ = 161790552. Its totient is φ = 40932864.

The previous prime is 87148861. The next prime is 87148871. The reversal of 87148868 is 86884178.

It can be written as a sum of positive squares in 4 ways, for example, as 23020804 + 64128064 = 4798^2 + 8008^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (87148861) 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 7 ways as a sum of consecutive naturals, for example, 50630 + ... + 52322.

It is an arithmetic number, because the mean of its divisors is an integer number (6741273).

Almost surely, 2^87148868 is an apocalyptic number.

It is an amenable number.

87148868 is a deficient number, since it is larger than the sum of its proper divisors (74641684).

87148868 is a wasteful number, since it uses less digits than its factorization.

87148868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 2469 counting only the distinct ones).

The product of its digits is 688128, while the sum is 50.

The square root of 87148868 is about 9335.3558046815. The cubic root of 87148868 is about 443.3573542427.

The spelling of 87148868 in words is "eighty-seven million, one hundred forty-eight thousand, eight hundred sixty-eight".