64461 has 4 divisors (see below), whose sum is σ = 85952. Its totient is φ = 42972.

The previous prime is 64453. The next prime is 64483. The reversal of 64461 is 16446.

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 not a de Polignac number, because 64461 - 2³ = 64453 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64451) 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, 10741 + ... + 10746.

It is an arithmetic number, because the mean of its divisors is an integer number (21488).

2⁶⁴⁴⁶¹ is an apocalyptic number.

It is an amenable number.

64461 is a deficient number, since it is larger than the sum of its proper divisors (21491).

64461 is a wasteful number, since it uses less digits than its factorization.

64461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21490.

The product of its digits is 576, while the sum is 21.

The square root of 64461 is about 253.8917091990. The cubic root of 64461 is about 40.0958119850.

It can be divided in two parts, 64 and 461, that added together give a palindrome (525).

The spelling of 64461 in words is "sixty-four thousand, four hundred sixty-one".