87736705 has 12 divisors (see below), whose sum is σ = 122473620. Its totient is φ = 60162144.

The previous prime is 87736681. The next prime is 87736721. The reversal of 87736705 is 50763778.

It can be written as a sum of positive squares in 2 ways, for example, as 49098049 + 38638656 = 7007^2 + 6216^2 .

It is not a de Polignac number, because 87736705 - 2¹⁵ = 87703937 is a prime.

It is a super-3 number, since 3×87736705³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178810 + ... + 179299.

It is an arithmetic number, because the mean of its divisors is an integer number (10206135).

Almost surely, 2^87736705 is an apocalyptic number.

It is an amenable number.

87736705 is a deficient number, since it is larger than the sum of its proper divisors (34736915).

87736705 is a wasteful number, since it uses less digits than its factorization.

87736705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358128 (or 358121 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 87736705 is about 9366.7873361148. The cubic root of 87736705 is about 444.3519667428.

The spelling of 87736705 in words is "eighty-seven million, seven hundred thirty-six thousand, seven hundred five".