423453829 has 2 divisors, whose sum is σ = 423453830. Its totient is φ = 423453828.

The previous prime is 423453803. The next prime is 423453839. The reversal of 423453829 is 928354324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422302500 + 1151329 = 20550^2 + 1073^2 .

It is a cyclic number.

It is not a de Polignac number, because 423453829 - 2¹³ = 423445637 is a prime.

It is a super-2 number, since 2×423453829² = 358626290589522482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423453791 and 423453800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423453839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211726914 + 211726915.

It is an arithmetic number, because the mean of its divisors is an integer number (211726915).

Almost surely, 2^423453829 is an apocalyptic number.

It is an amenable number.

423453829 is a deficient number, since it is larger than the sum of its proper divisors (1).

423453829 is an equidigital number, since it uses as much as digits as its factorization.

423453829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 40.

The square root of 423453829 is about 20577.9938040617. The cubic root of 423453829 is about 750.9344376552.

The spelling of 423453829 in words is "four hundred twenty-three million, four hundred fifty-three thousand, eight hundred twenty-nine".