65716705 has 8 divisors (see below), whose sum is σ = 79070400. Its totient is φ = 52433136.

The previous prime is 65716691. The next prime is 65716709. The reversal of 65716705 is 50761756.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65716705 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65716709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15445 + ... + 19234.

It is an arithmetic number, because the mean of its divisors is an integer number (9883800).

Almost surely, 2^65716705 is an apocalyptic number.

It is an amenable number.

65716705 is a deficient number, since it is larger than the sum of its proper divisors (13353695).

65716705 is a wasteful number, since it uses less digits than its factorization.

65716705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35063.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 65716705 is about 8106.5840524847. The cubic root of 65716705 is about 403.5449591029.

The spelling of 65716705 in words is "sixty-five million, seven hundred sixteen thousand, seven hundred five".