424531997 has 2 divisors, whose sum is σ = 424531998. Its totient is φ = 424531996.

The previous prime is 424531981. The next prime is 424532027. The reversal of 424531997 is 799135424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216855076 + 207676921 = 14726^2 + 14411^2 .

It is a cyclic number.

It is not a de Polignac number, because 424531997 - 2⁴ = 424531981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424531927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212265998 + 212265999.

It is an arithmetic number, because the mean of its divisors is an integer number (212265999).

Almost surely, 2^424531997 is an apocalyptic number.

It is an amenable number.

424531997 is a deficient number, since it is larger than the sum of its proper divisors (1).

424531997 is an equidigital number, since it uses as much as digits as its factorization.

424531997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 424531997 is about 20604.1742615422. The cubic root of 424531997 is about 751.5712227874.

The spelling of 424531997 in words is "four hundred twenty-four million, five hundred thirty-one thousand, nine hundred ninety-seven".