87736505 has 8 divisors (see below), whose sum is σ = 105537600. Its totient is φ = 70020016.

The previous prime is 87736501. The next prime is 87736549. The reversal of 87736505 is 50563778.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87736505 - 2² = 87736501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87736501) 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, 18845 + ... + 23034.

It is an arithmetic number, because the mean of its divisors is an integer number (13192200).

Almost surely, 2^87736505 is an apocalyptic number.

It is an amenable number.

87736505 is a deficient number, since it is larger than the sum of its proper divisors (17801095).

87736505 is a wasteful number, since it uses less digits than its factorization.

87736505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42303.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 87736505 is about 9366.7766600896. The cubic root of 87736505 is about 444.3516291021.

The spelling of 87736505 in words is "eighty-seven million, seven hundred thirty-six thousand, five hundred five".