63421233 has 8 divisors (see below), whose sum is σ = 85399296. Its totient is φ = 41862000.

The previous prime is 63421229. The next prime is 63421243. The reversal of 63421233 is 33212436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63421233 - 2² = 63421229 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63421243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104353 + ... + 104958.

It is an arithmetic number, because the mean of its divisors is an integer number (10674912).

Almost surely, 2^63421233 is an apocalyptic number.

It is an amenable number.

63421233 is a deficient number, since it is larger than the sum of its proper divisors (21978063).

63421233 is a wasteful number, since it uses less digits than its factorization.

63421233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209415.

The product of its digits is 2592, while the sum is 24.

The square root of 63421233 is about 7963.7449105305. The cubic root of 63421233 is about 398.7905823746.

Adding to 63421233 its reverse (33212436), we get a palindrome (96633669).

The spelling of 63421233 in words is "sixty-three million, four hundred twenty-one thousand, two hundred thirty-three".