87045609 has 24 divisors (see below), whose sum is σ = 136344000. Its totient is φ = 49248864.

The previous prime is 87045589. The next prime is 87045641. The reversal of 87045609 is 90654078.

It is not a de Polignac number, because 87045609 - 2¹³ = 87037417 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (87045689) 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 23 ways as a sum of consecutive naturals, for example, 12267 + ... + 18015.

It is an arithmetic number, because the mean of its divisors is an integer number (5681000).

Almost surely, 2^87045609 is an apocalyptic number.

It is an amenable number.

87045609 is a deficient number, since it is larger than the sum of its proper divisors (49298391).

87045609 is a wasteful number, since it uses less digits than its factorization.

87045609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5869 (or 5862 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 87045609 is about 9329.8236317735. The cubic root of 87045609 is about 443.1821799263.

The spelling of 87045609 in words is "eighty-seven million, forty-five thousand, six hundred nine".