434431 has 2 divisors, whose sum is σ = 434432. Its totient is φ = 434430.

The previous prime is 434411. The next prime is 434437. The reversal of 434431 is 134434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 434431 - 2⁷ = 434303 is a prime.

It is a super-2 number, since 2×434431² = 377460587522, which contains 22 as substring.

It is an Ulam number.

434431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 434399 and 434408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217215 + 217216.

It is an arithmetic number, because the mean of its divisors is an integer number (217216).

2⁴³⁴⁴³¹ is an apocalyptic number.

434431 is a deficient number, since it is larger than the sum of its proper divisors (1).

434431 is an equidigital number, since it uses as much as digits as its factorization.

434431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 19.

The square root of 434431 is about 659.1137989756. The cubic root of 434431 is about 75.7367972865.

Adding to 434431 its reverse (134434), we get a palindrome (568865).

The spelling of 434431 in words is "four hundred thirty-four thousand, four hundred thirty-one".