431350663 has 4 divisors (see below), whose sum is σ = 431524288. Its totient is φ = 431177040.

The previous prime is 431350573. The next prime is 431350681. The reversal of 431350663 is 366053134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366053134 = 2 ⋅183026567.

It is a cyclic number.

It is not a de Polignac number, because 431350663 - 2²¹ = 429253511 is a prime.

It is a super-3 number, since 3×431350663³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431350363) 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 3 ways as a sum of consecutive naturals, for example, 83031 + ... + 88072.

It is an arithmetic number, because the mean of its divisors is an integer number (107881072).

Almost surely, 2^431350663 is an apocalyptic number.

431350663 is a deficient number, since it is larger than the sum of its proper divisors (173625).

431350663 is a wasteful number, since it uses less digits than its factorization.

431350663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173624.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 431350663 is about 20768.9831961028. The cubic root of 431350663 is about 755.5736838267.

The spelling of 431350663 in words is "four hundred thirty-one million, three hundred fifty thousand, six hundred sixty-three".