87548436 has 36 divisors (see below), whose sum is σ = 234322452. Its totient is φ = 27465984.

The previous prime is 87548429. The next prime is 87548437. The reversal of 87548436 is 63484578.

It can be written as a sum of positive squares in 2 ways, for example, as 80892036 + 6656400 = 8994^2 + 2580^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 87548391 and 87548400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87548437) 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 11 ways as a sum of consecutive naturals, for example, 70915 + ... + 72138.

It is an arithmetic number, because the mean of its divisors is an integer number (6508957).

Almost surely, 2^87548436 is an apocalyptic number.

It is an amenable number.

87548436 is an abundant number, since it is smaller than the sum of its proper divisors (146774016).

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

87548436 is a wasteful number, since it uses less digits than its factorization.

87548436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143080 (or 143075 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 87548436 is about 9356.7321218468. The cubic root of 87548436 is about 444.0339029383.

The spelling of 87548436 in words is "eighty-seven million, five hundred forty-eight thousand, four hundred thirty-six".