431314823 has 2 divisors, whose sum is σ = 431314824. Its totient is φ = 431314822.

The previous prime is 431314787. The next prime is 431314831. The reversal of 431314823 is 328413134.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431314823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431314843) 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 as a sum of consecutive naturals, namely, 215657411 + 215657412.

It is an arithmetic number, because the mean of its divisors is an integer number (215657412).

Almost surely, 2^431314823 is an apocalyptic number.

431314823 is a deficient number, since it is larger than the sum of its proper divisors (1).

431314823 is an equidigital number, since it uses as much as digits as its factorization.

431314823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 431314823 is about 20768.1203530796. The cubic root of 431314823 is about 755.5527569157.

Adding to 431314823 its reverse (328413134), we get a palindrome (759727957).

The spelling of 431314823 in words is "four hundred thirty-one million, three hundred fourteen thousand, eight hundred twenty-three".