423400463 has 2 divisors, whose sum is σ = 423400464. Its totient is φ = 423400462.

The previous prime is 423400457. The next prime is 423400507. The reversal of 423400463 is 364004324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423400463 - 2⁴ = 423400447 is a prime.

It is a super-2 number, since 2×423400463² = 358535904137228738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423400433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211700231 + 211700232.

It is an arithmetic number, because the mean of its divisors is an integer number (211700232).

Almost surely, 2^423400463 is an apocalyptic number.

423400463 is a deficient number, since it is larger than the sum of its proper divisors (1).

423400463 is an equidigital number, since it uses as much as digits as its factorization.

423400463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 423400463 is about 20576.6970867533. The cubic root of 423400463 is about 750.9028906891.

Adding to 423400463 its reverse (364004324), we get a palindrome (787404787).

The spelling of 423400463 in words is "four hundred twenty-three million, four hundred thousand, four hundred sixty-three".