431923747 has 2 divisors, whose sum is σ = 431923748. Its totient is φ = 431923746.

The previous prime is 431923721. The next prime is 431923753. The reversal of 431923747 is 747329134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431923747 - 2⁷ = 431923619 is a prime.

It is not a weakly prime, because it can be changed into another prime (431923717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215961873 + 215961874.

It is an arithmetic number, because the mean of its divisors is an integer number (215961874).

Almost surely, 2^431923747 is an apocalyptic number.

431923747 is a deficient number, since it is larger than the sum of its proper divisors (1).

431923747 is an equidigital number, since it uses as much as digits as its factorization.

431923747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

The square root of 431923747 is about 20782.7752477863. The cubic root of 431923747 is about 755.9081491902.

The spelling of 431923747 in words is "four hundred thirty-one million, nine hundred twenty-three thousand, seven hundred forty-seven".