63401223 has 16 divisors (see below), whose sum is σ = 86486400. Its totient is φ = 41300640.

The previous prime is 63401209. The next prime is 63401227. The reversal of 63401223 is 32210436.

It is a happy number.

It is not a de Polignac number, because 63401223 - 2¹⁰ = 63400199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63401223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63401227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31048 + ... + 33026.

It is an arithmetic number, because the mean of its divisors is an integer number (5405400).

Almost surely, 2^63401223 is an apocalyptic number.

63401223 is a deficient number, since it is larger than the sum of its proper divisors (23085177).

63401223 is a wasteful number, since it uses less digits than its factorization.

63401223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 63401223 is about 7962.4884929273. The cubic root of 63401223 is about 398.7486372270.

Adding to 63401223 its reverse (32210436), we get a palindrome (95611659).

The spelling of 63401223 in words is "sixty-three million, four hundred one thousand, two hundred twenty-three".