87575740 has 36 divisors (see below), whose sum is σ = 213937416. Its totient is φ = 30025632.

The previous prime is 87575729. The next prime is 87575753. The reversal of 87575740 is 4757578.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 43702 + ... + 45661.

It is an arithmetic number, because the mean of its divisors is an integer number (5942706).

Almost surely, 2^87575740 is an apocalyptic number.

It is an amenable number.

87575740 is an abundant number, since it is smaller than the sum of its proper divisors (126361676).

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

87575740 is a wasteful number, since it uses less digits than its factorization.

87575740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89386 (or 89377 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 43.

The square root of 87575740 is about 9358.1910645167. The cubic root of 87575740 is about 444.0800588801.

The spelling of 87575740 in words is "eighty-seven million, five hundred seventy-five thousand, seven hundred forty".