814431 has 8 divisors (see below), whose sum is σ = 1090224. Its totient is φ = 540800.

The previous prime is 814423. The next prime is 814447. The reversal of 814431 is 134418.

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 814431 - 2³ = 814423 is a prime.

It is a super-2 number, since 2×814431² = 1326595707522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 814398 and 814407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865 + ... + 1541.

It is an arithmetic number, because the mean of its divisors is an integer number (136278).

2⁸¹⁴⁴³¹ is an apocalyptic number.

814431 is a deficient number, since it is larger than the sum of its proper divisors (275793).

814431 is a wasteful number, since it uses less digits than its factorization.

814431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081.

The product of its digits is 384, while the sum is 21.

The square root of 814431 is about 902.4583092864. The cubic root of 814431 is about 93.3866432975.

Adding to 814431 its reverse (134418), we get a palindrome (948849).

The spelling of 814431 in words is "eight hundred fourteen thousand, four hundred thirty-one".