63421113 has 16 divisors (see below), whose sum is σ = 97341440. Its totient is φ = 35978256.

The previous prime is 63421103. The next prime is 63421123. The reversal of 63421113 is 31112436.

It is an interprime number because it is at equal distance from previous prime (63421103) and next prime (63421123).

It is not a de Polignac number, because 63421113 - 2⁵ = 63421081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 63421113.

It is not an unprimeable number, because it can be changed into a prime (63421103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7945 + ... + 13782.

It is an arithmetic number, because the mean of its divisors is an integer number (6083840).

Almost surely, 2^63421113 is an apocalyptic number.

It is an amenable number.

63421113 is a deficient number, since it is larger than the sum of its proper divisors (33920327).

63421113 is a wasteful number, since it uses less digits than its factorization.

63421113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21876.

The product of its digits is 432, while the sum is 21.

The square root of 63421113 is about 7963.7373763830. The cubic root of 63421113 is about 398.7903308558.

Adding to 63421113 its reverse (31112436), we get a palindrome (94533549).

The spelling of 63421113 in words is "sixty-three million, four hundred twenty-one thousand, one hundred thirteen".