87475544 has 32 divisors (see below), whose sum is σ = 185934000. Its totient is φ = 38247552.

The previous prime is 87475543. The next prime is 87475561. The reversal of 87475544 is 44557478.

It is a junction number, because it is equal to n+sod(n) for n = 87475495 and 87475504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87475543) 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, 20159 + ... + 24110.

Almost surely, 2^87475544 is an apocalyptic number.

It is an amenable number.

87475544 is an abundant number, since it is smaller than the sum of its proper divisors (98458456).

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

87475544 is a wasteful number, since it uses less digits than its factorization.

87475544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44307 (or 44303 counting only the distinct ones).

The product of its digits is 627200, while the sum is 44.

The square root of 87475544 is about 9352.8361473940. The cubic root of 87475544 is about 443.9106359120.

The spelling of 87475544 in words is "eighty-seven million, four hundred seventy-five thousand, five hundred forty-four".