63400423 has 8 divisors (see below), whose sum is σ = 64353600. Its totient is φ = 62451168.

The previous prime is 63400417. The next prime is 63400433. The reversal of 63400423 is 32400436.

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

It is a cyclic number.

It is not a de Polignac number, because 63400423 - 2⁹ = 63399911 is a prime.

It is a super-2 number, since 2×63400423² = 8039227273157858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63400394 and 63400403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63400433) 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 7 ways as a sum of consecutive naturals, for example, 50973 + ... + 52201.

It is an arithmetic number, because the mean of its divisors is an integer number (8044200).

Almost surely, 2^63400423 is an apocalyptic number.

63400423 is a deficient number, since it is larger than the sum of its proper divisors (953177).

63400423 is a wasteful number, since it uses less digits than its factorization.

63400423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 63400423 is about 7962.4382572174. The cubic root of 63400423 is about 398.7469600761.

Adding to 63400423 its reverse (32400436), we get a palindrome (95800859).

The spelling of 63400423 in words is "sixty-three million, four hundred thousand, four hundred twenty-three".