65318087 has 4 divisors (see below), whose sum is σ = 65369520. Its totient is φ = 65266656.

The previous prime is 65318051. The next prime is 65318089. The reversal of 65318087 is 78081356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65318087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65318087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65318089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23762 + ... + 26367.

It is an arithmetic number, because the mean of its divisors is an integer number (16342380).

Almost surely, 2^65318087 is an apocalyptic number.

65318087 is a deficient number, since it is larger than the sum of its proper divisors (51433).

65318087 is a wasteful number, since it uses less digits than its factorization.

65318087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51432.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 65318087 is about 8081.9605913417. The cubic root of 65318087 is about 402.7273758693.

The spelling of 65318087 in words is "sixty-five million, three hundred eighteen thousand, eighty-seven".