431106663 has 48 divisors (see below), whose sum is σ = 652212000. Its totient is φ = 252854784.

The previous prime is 431106653. The next prime is 431106737. The reversal of 431106663 is 366601134.

It is not a de Polignac number, because 431106663 - 2⁵ = 431106631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 431106663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431106623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1602493 + ... + 1602761.

It is an arithmetic number, because the mean of its divisors is an integer number (13587750).

Almost surely, 2^431106663 is an apocalyptic number.

431106663 is a deficient number, since it is larger than the sum of its proper divisors (221105337).

431106663 is a wasteful number, since it uses less digits than its factorization.

431106663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 431106663 is about 20763.1082210733. The cubic root of 431106663 is about 755.4311897435.

Adding to 431106663 its reverse (366601134), we get a palindrome (797707797).

The spelling of 431106663 in words is "four hundred thirty-one million, one hundred six thousand, six hundred sixty-three".