423364681 has 2 divisors, whose sum is σ = 423364682. Its totient is φ = 423364680.

The previous prime is 423364663. The next prime is 423364699. The reversal of 423364681 is 186463324.

It is a balanced prime because it is at equal distance from previous prime (423364663) and next prime (423364699).

It can be written as a sum of positive squares in only one way, i.e., 349129225 + 74235456 = 18685^2 + 8616^2 .

It is a cyclic number.

It is not a de Polignac number, because 423364681 - 2⁹ = 423364169 is a prime.

It is a super-2 number, since 2×423364681² = 358475306236463522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423364681.

It is not a weakly prime, because it can be changed into another prime (423364181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211682340 + 211682341.

It is an arithmetic number, because the mean of its divisors is an integer number (211682341).

Almost surely, 2^423364681 is an apocalyptic number.

It is an amenable number.

423364681 is a deficient number, since it is larger than the sum of its proper divisors (1).

423364681 is an equidigital number, since it uses as much as digits as its factorization.

423364681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The square root of 423364681 is about 20575.8275896742. The cubic root of 423364681 is about 750.8817369064.

The spelling of 423364681 in words is "four hundred twenty-three million, three hundred sixty-four thousand, six hundred eighty-one".