63421100 has 18 divisors (see below), whose sum is σ = 137624004. Its totient is φ = 25368400.

The previous prime is 63421093. The next prime is 63421103. The reversal of 63421100 is 112436.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 317006 + ... + 317205.

It is an arithmetic number, because the mean of its divisors is an integer number (7645778).

Almost surely, 2^63421100 is an apocalyptic number.

It is an amenable number.

63421100 is an abundant number, since it is smaller than the sum of its proper divisors (74202904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63421100 is a wasteful number, since it uses less digits than its factorization.

63421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634225 (or 634218 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 63421100 is about 7963.7365601833. The cubic root of 63421100 is about 398.7903036079.

Adding to 63421100 its reverse (112436), we get a palindrome (63533536).

The spelling of 63421100 in words is "sixty-three million, four hundred twenty-one thousand, one hundred".