87509044 has 12 divisors (see below), whose sum is σ = 175018144. Its totient is φ = 37503864.

The previous prime is 87509039. The next prime is 87509057. The reversal of 87509044 is 44090578.

87509044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 87508994 and 87509012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1562634 + ... + 1562689.

Almost surely, 2^87509044 is an apocalyptic number.

It is an amenable number.

87509044 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.

87509044 is a wasteful number, since it uses less digits than its factorization.

87509044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125334 (or 3125332 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 87509044 is about 9354.6268765782. The cubic root of 87509044 is about 443.9672959706.

The spelling of 87509044 in words is "eighty-seven million, five hundred nine thousand, forty-four".