431117 has 4 divisors (see below), whose sum is σ = 445056. Its totient is φ = 417180.

The previous prime is 431107. The next prime is 431141. The reversal of 431117 is 711134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 431117 - 2⁸ = 430861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 431095 and 431104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6923 + ... + 6984.

It is an arithmetic number, because the mean of its divisors is an integer number (111264).

2⁴³¹¹¹⁷ is an apocalyptic number.

It is an amenable number.

431117 is a deficient number, since it is larger than the sum of its proper divisors (13939).

431117 is a wasteful number, since it uses less digits than its factorization.

431117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13938.

The product of its digits is 84, while the sum is 17.

The square root of 431117 is about 656.5950045500. The cubic root of 431117 is about 75.5437227561.

Adding to 431117 its sum of digits (17), we get a palindrome (431134).

The spelling of 431117 in words is "four hundred thirty-one thousand, one hundred seventeen".