63228231 has 12 divisors (see below), whose sum is σ = 99632520. Its totient is φ = 38320080.

The previous prime is 63228229. The next prime is 63228233. The reversal of 63228231 is 13282236.

63228231 is a `hidden beast` number, since 632 + 2 + 8 + 23 + 1 = 666.

63228231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63228229) and next prime (63228233).

It is not a de Polignac number, because 63228231 - 2¹ = 63228229 is a prime.

It is a super-2 number, since 2×63228231² = 7995618390778722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63228195 and 63228204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63228233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319236 + ... + 319433.

It is an arithmetic number, because the mean of its divisors is an integer number (8302710).

Almost surely, 2^63228231 is an apocalyptic number.

63228231 is a deficient number, since it is larger than the sum of its proper divisors (36404289).

63228231 is a wasteful number, since it uses less digits than its factorization.

63228231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638686 (or 638683 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 63228231 is about 7951.6181372096. The cubic root of 63228231 is about 398.3856412968.

The spelling of 63228231 in words is "sixty-three million, two hundred twenty-eight thousand, two hundred thirty-one".