63461 has 4 divisors (see below), whose sum is σ = 67212. Its totient is φ = 59712.

The previous prime is 63443. The next prime is 63463. The reversal of 63461 is 16436.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42436 + 21025 = 206^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 63461 - 2⁶ = 63397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63463) 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, 1850 + ... + 1883.

It is an arithmetic number, because the mean of its divisors is an integer number (16803).

2⁶³⁴⁶¹ is an apocalyptic number.

It is an amenable number.

63461 is a deficient number, since it is larger than the sum of its proper divisors (3751).

63461 is a wasteful number, since it uses less digits than its factorization.

63461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750.

The product of its digits is 432, while the sum is 20.

The square root of 63461 is about 251.9146680922. The cubic root of 63461 is about 39.8873916146.

Adding to 63461 its reverse (16436), we get a palindrome (79897).

The spelling of 63461 in words is "sixty-three thousand, four hundred sixty-one".