431580973 has 2 divisors, whose sum is σ = 431580974. Its totient is φ = 431580972.

The previous prime is 431580959. The next prime is 431581001. The reversal of 431580973 is 379085134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369139369 + 62441604 = 19213^2 + 7902^2 .

It is a cyclic number.

It is not a de Polignac number, because 431580973 - 2¹⁷ = 431449901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431580923) 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, 215790486 + 215790487.

It is an arithmetic number, because the mean of its divisors is an integer number (215790487).

Almost surely, 2^431580973 is an apocalyptic number.

It is an amenable number.

431580973 is a deficient number, since it is larger than the sum of its proper divisors (1).

431580973 is an equidigital number, since it uses as much as digits as its factorization.

431580973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 431580973 is about 20774.5270222934. The cubic root of 431580973 is about 755.7081337677.

The spelling of 431580973 in words is "four hundred thirty-one million, five hundred eighty thousand, nine hundred seventy-three".