64834271 has 4 divisors (see below), whose sum is σ = 64993200. Its totient is φ = 64675344.

The previous prime is 64834267. The next prime is 64834279. The reversal of 64834271 is 17243846.

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

It is a cyclic number.

It is not a de Polignac number, because 64834271 - 2² = 64834267 is a prime.

It is a super-2 number, since 2×64834271² = 8406965392202882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64834279) 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, 78851 + ... + 79668.

It is an arithmetic number, because the mean of its divisors is an integer number (16248300).

Almost surely, 2^64834271 is an apocalyptic number.

64834271 is a deficient number, since it is larger than the sum of its proper divisors (158929).

64834271 is a wasteful number, since it uses less digits than its factorization.

64834271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158928.

The product of its digits is 32256, while the sum is 35.

The square root of 64834271 is about 8051.9731122254. The cubic root of 64834271 is about 401.7305666336.

The spelling of 64834271 in words is "sixty-four million, eight hundred thirty-four thousand, two hundred seventy-one".