63606461 has 4 divisors (see below), whose sum is σ = 64033500. Its totient is φ = 63179424.

The previous prime is 63606449. The next prime is 63606479. The reversal of 63606461 is 16460636.

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 3062500 + 60543961 = 1750^2 + 7781^2 .

It is a cyclic number.

It is not a de Polignac number, because 63606461 - 2¹⁸ = 63344317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63606421) 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, 213296 + ... + 213593.

It is an arithmetic number, because the mean of its divisors is an integer number (16008375).

Almost surely, 2^63606461 is an apocalyptic number.

It is an amenable number.

63606461 is a deficient number, since it is larger than the sum of its proper divisors (427039).

63606461 is a wasteful number, since it uses less digits than its factorization.

63606461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427038.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 63606461 is about 7975.3658850237. The cubic root of 63606461 is about 399.1784408399.

It can be divided in two parts, 6360 and 6461, that added together give a palindrome (12821).

The spelling of 63606461 in words is "sixty-three million, six hundred six thousand, four hundred sixty-one".