65717087 has 8 divisors (see below), whose sum is σ = 69660000. Its totient is φ = 61782784.

The previous prime is 65717077. The next prime is 65717089. The reversal of 65717087 is 78071756.

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 65717087 - 2⁶ = 65717023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65717089) by changing a digit.

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, 20414 + ... + 23412.

It is an arithmetic number, because the mean of its divisors is an integer number (8707500).

Almost surely, 2^65717087 is an apocalyptic number.

65717087 is a deficient number, since it is larger than the sum of its proper divisors (3942913).

65717087 is a wasteful number, since it uses less digits than its factorization.

65717087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 65717087 is about 8106.6076135459. The cubic root of 65717087 is about 403.5457410141.

The spelling of 65717087 in words is "sixty-five million, seven hundred seventeen thousand, eighty-seven".