87125444 has 24 divisors (see below), whose sum is σ = 175855680. Its totient is φ = 36995616.

The previous prime is 87125443. The next prime is 87125447. The reversal of 87125444 is 44452178.

It is not an unprimeable number, because it can be changed into a prime (87125443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11222 + ... + 17325.

It is an arithmetic number, because the mean of its divisors is an integer number (7327320).

Almost surely, 2^87125444 is an apocalyptic number.

It is an amenable number.

87125444 is an abundant number, since it is smaller than the sum of its proper divisors (88730236).

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

87125444 is a wasteful number, since it uses less digits than its factorization.

87125444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28667 (or 28665 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 87125444 is about 9334.1011350853. The cubic root of 87125444 is about 443.3176286043.

The spelling of 87125444 in words is "eighty-seven million, one hundred twenty-five thousand, four hundred forty-four".