63604231 has 2 divisors, whose sum is σ = 63604232. Its totient is φ = 63604230.

The previous prime is 63604217. The next prime is 63604237. The reversal of 63604231 is 13240636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63604231 - 2⁵ = 63604199 is a prime.

It is a super-2 number, since 2×63604231² = 8090996402202722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63604196 and 63604205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63604237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31802115 + 31802116.

It is an arithmetic number, because the mean of its divisors is an integer number (31802116).

Almost surely, 2^63604231 is an apocalyptic number.

63604231 is a deficient number, since it is larger than the sum of its proper divisors (1).

63604231 is an equidigital number, since it uses as much as digits as its factorization.

63604231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 63604231 is about 7975.2260783002. The cubic root of 63604231 is about 399.1737758090.

Adding to 63604231 its reverse (13240636), we get a palindrome (76844867).

The spelling of 63604231 in words is "sixty-three million, six hundred four thousand, two hundred thirty-one".