1063632321 has 6 divisors (see below), whose sum is σ = 1536357810. Its totient is φ = 709088208.

The previous prime is 1063632307. The next prime is 1063632337. The reversal of 1063632321 is 1232363601.

It is a happy number.

1063632321 is a `hidden beast` number, since 1 + 0 + 6 + 3 + 632 + 3 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 782600625 + 281031696 = 27975^2 + 16764^2 .

It is not a de Polignac number, because 1063632321 - 2¹¹ = 1063630273 is a prime.

It is a super-2 number, since 2×1063632321² = 2262627428551694082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1063632121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59090676 + ... + 59090693.

It is an arithmetic number, because the mean of its divisors is an integer number (256059635).

Almost surely, 2^1063632321 is an apocalyptic number.

It is an amenable number.

1063632321 is a deficient number, since it is larger than the sum of its proper divisors (472725489).

1063632321 is a wasteful number, since it uses less digits than its factorization.

1063632321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118181375 (or 118181372 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 1063632321 is about 32613.3764121411. The cubic root of 1063632321 is about 1020.7761364942.

Adding to 1063632321 its reverse (1232363601), we get a palindrome (2295995922).

The spelling of 1063632321 in words is "one billion, sixty-three million, six hundred thirty-two thousand, three hundred twenty-one".