854431 has 2 divisors, whose sum is σ = 854432. Its totient is φ = 854430.

The previous prime is 854423. The next prime is 854443. The reversal of 854431 is 134458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 854431 - 2³ = 854423 is a prime.

It is a super-2 number, since 2×854431² = 1460104667522, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 854396 and 854405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427215 + 427216.

It is an arithmetic number, because the mean of its divisors is an integer number (427216).

2⁸⁵⁴⁴³¹ is an apocalyptic number.

854431 is a deficient number, since it is larger than the sum of its proper divisors (1).

854431 is an equidigital number, since it uses as much as digits as its factorization.

854431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 25.

The square root of 854431 is about 924.3543692762. The cubic root of 854431 is about 94.8911403109.

Adding to 854431 its reverse (134458), we get a palindrome (988889).

The spelling of 854431 in words is "eight hundred fifty-four thousand, four hundred thirty-one".