65344261 has 4 divisors (see below), whose sum is σ = 65735712. Its totient is φ = 64952812.

The previous prime is 65344247. The next prime is 65344291. The reversal of 65344261 is 16244356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65344261 - 2¹⁷ = 65213189 is a prime.

It is a super-2 number, since 2×65344261² = 8539744891272242, 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 (65344231) 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, 195475 + ... + 195808.

It is an arithmetic number, because the mean of its divisors is an integer number (16433928).

Almost surely, 2^65344261 is an apocalyptic number.

It is an amenable number.

65344261 is a deficient number, since it is larger than the sum of its proper divisors (391451).

65344261 is a wasteful number, since it uses less digits than its factorization.

65344261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391450.

The product of its digits is 17280, while the sum is 31.

The square root of 65344261 is about 8083.5797144582. The cubic root of 65344261 is about 402.7811617814.

The spelling of 65344261 in words is "sixty-five million, three hundred forty-four thousand, two hundred sixty-one".