87650165 has 8 divisors (see below), whose sum is σ = 105257400. Its totient is φ = 70068672.

The previous prime is 87650149. The next prime is 87650201. The reversal of 87650165 is 56105678.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23746129 + 63904036 = 4873^2 + 7994^2 .

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 87650165 - 2⁴ = 87650149 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2087 + ... + 13403.

It is an arithmetic number, because the mean of its divisors is an integer number (13157175).

Almost surely, 2^87650165 is an apocalyptic number.

It is an amenable number.

87650165 is a deficient number, since it is larger than the sum of its proper divisors (17607235).

87650165 is a wasteful number, since it uses less digits than its factorization.

87650165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12871.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 87650165 is about 9362.1666829853. The cubic root of 87650165 is about 444.2058216398.

The spelling of 87650165 in words is "eighty-seven million, six hundred fifty thousand, one hundred sixty-five".