431967407 has 2 divisors, whose sum is σ = 431967408. Its totient is φ = 431967406.

The previous prime is 431967359. The next prime is 431967409. The reversal of 431967407 is 704769134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431967407 - 2⁶ = 431967343 is a prime.

Together with 431967409, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_22946891 and since 431967407 and 22946891 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431967409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215983703 + 215983704.

It is an arithmetic number, because the mean of its divisors is an integer number (215983704).

Almost surely, 2^431967407 is an apocalyptic number.

431967407 is a deficient number, since it is larger than the sum of its proper divisors (1).

431967407 is an equidigital number, since it uses as much as digits as its factorization.

431967407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 431967407 is about 20783.8256103153. The cubic root of 431967407 is about 755.9336180668.

The spelling of 431967407 in words is "four hundred thirty-one million, nine hundred sixty-seven thousand, four hundred seven".