423445597 has 2 divisors, whose sum is σ = 423445598. Its totient is φ = 423445596.

The previous prime is 423445549. The next prime is 423445613. The reversal of 423445597 is 795544324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255328441 + 168117156 = 15979^2 + 12966^2 .

It is a cyclic number.

It is not a de Polignac number, because 423445597 - 2¹¹ = 423443549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423445507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211722798 + 211722799.

It is an arithmetic number, because the mean of its divisors is an integer number (211722799).

Almost surely, 2^423445597 is an apocalyptic number.

It is an amenable number.

423445597 is a deficient number, since it is larger than the sum of its proper divisors (1).

423445597 is an equidigital number, since it uses as much as digits as its factorization.

423445597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 43.

The square root of 423445597 is about 20577.7937835911. The cubic root of 423445597 is about 750.9295715345.

The spelling of 423445597 in words is "four hundred twenty-three million, four hundred forty-five thousand, five hundred ninety-seven".