423033397 has 2 divisors, whose sum is σ = 423033398. Its totient is φ = 423033396.

The previous prime is 423033383. The next prime is 423033427. The reversal of 423033397 is 793330324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213189201 + 209844196 = 14601^2 + 14486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423033397 is a prime.

It is equal to p_22497280 and since 423033397 and 22497280 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423033307) 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, 211516698 + 211516699.

It is an arithmetic number, because the mean of its divisors is an integer number (211516699).

Almost surely, 2^423033397 is an apocalyptic number.

It is an amenable number.

423033397 is a deficient number, since it is larger than the sum of its proper divisors (1).

423033397 is an equidigital number, since it uses as much as digits as its factorization.

423033397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 34.

The square root of 423033397 is about 20567.7756940317. The cubic root of 423033397 is about 750.6858301397.

The spelling of 423033397 in words is "four hundred twenty-three million, thirty-three thousand, three hundred ninety-seven".