65871087 has 16 divisors (see below), whose sum is σ = 88843392. Its totient is φ = 43410080.

The previous prime is 65871061. The next prime is 65871109. The reversal of 65871087 is 78017856.

It is a cyclic number.

It is not a de Polignac number, because 65871087 - 2¹¹ = 65869039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65871007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133912 + ... + 134402.

It is an arithmetic number, because the mean of its divisors is an integer number (5552712).

Almost surely, 2^65871087 is an apocalyptic number.

65871087 is a deficient number, since it is larger than the sum of its proper divisors (22972305).

65871087 is a wasteful number, since it uses less digits than its factorization.

65871087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 65871087 is about 8116.1004799103. The cubic root of 65871087 is about 403.8607152273.

The spelling of 65871087 in words is "sixty-five million, eight hundred seventy-one thousand, eighty-seven".