65705271 has 8 divisors (see below), whose sum is σ = 90628080. Its totient is φ = 42292992.

The previous prime is 65705267. The next prime is 65705279. The reversal of 65705271 is 17250756.

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

It is not a de Polignac number, because 65705271 - 2² = 65705267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65705279) 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, 377530 + ... + 377703.

It is an arithmetic number, because the mean of its divisors is an integer number (11328510).

Almost surely, 2^65705271 is an apocalyptic number.

65705271 is a deficient number, since it is larger than the sum of its proper divisors (24922809).

65705271 is a wasteful number, since it uses less digits than its factorization.

65705271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755265.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 65705271 is about 8105.8787925801. The cubic root of 65705271 is about 403.5215535843.

The spelling of 65705271 in words is "sixty-five million, seven hundred five thousand, two hundred seventy-one".