423460637 has 2 divisors, whose sum is σ = 423460638. Its totient is φ = 423460636.

The previous prime is 423460627. The next prime is 423460643. The reversal of 423460637 is 736064324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 355661881 + 67798756 = 18859^2 + 8234^2 .

It is a cyclic number.

It is not a de Polignac number, because 423460637 - 2⁴ = 423460621 is a prime.

It is a super-2 number, since 2×423460637² = 358637822176891538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423460597 and 423460606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423460627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211730318 + 211730319.

It is an arithmetic number, because the mean of its divisors is an integer number (211730319).

Almost surely, 2^423460637 is an apocalyptic number.

It is an amenable number.

423460637 is a deficient number, since it is larger than the sum of its proper divisors (1).

423460637 is an equidigital number, since it uses as much as digits as its factorization.

423460637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 35.

The square root of 423460637 is about 20578.1592228265. The cubic root of 423460637 is about 750.9384619698.

The spelling of 423460637 in words is "four hundred twenty-three million, four hundred sixty thousand, six hundred thirty-seven".