431898473 has 2 divisors, whose sum is σ = 431898474. Its totient is φ = 431898472.

The previous prime is 431898457. The next prime is 431898487. The reversal of 431898473 is 374898134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266081344 + 165817129 = 16312^2 + 12877^2 .

It is a cyclic number.

It is not a de Polignac number, because 431898473 - 2⁴ = 431898457 is a prime.

It is not a weakly prime, because it can be changed into another prime (431858473) 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, 215949236 + 215949237.

It is an arithmetic number, because the mean of its divisors is an integer number (215949237).

Almost surely, 2^431898473 is an apocalyptic number.

It is an amenable number.

431898473 is a deficient number, since it is larger than the sum of its proper divisors (1).

431898473 is an equidigital number, since it uses as much as digits as its factorization.

431898473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 431898473 is about 20782.1671872786. The cubic root of 431898473 is about 755.8934049246.

The spelling of 431898473 in words is "four hundred thirty-one million, eight hundred ninety-eight thousand, four hundred seventy-three".