423502069 has 2 divisors, whose sum is σ = 423502070. Its totient is φ = 423502068.

The previous prime is 423502031. The next prime is 423502081. The reversal of 423502069 is 960205324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381420900 + 42081169 = 19530^2 + 6487^2 .

It is a cyclic number.

It is not a de Polignac number, because 423502069 - 2¹³ = 423493877 is a prime.

It is a super-2 number, since 2×423502069² = 358708004894561522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423502069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423502969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211751034 + 211751035.

It is an arithmetic number, because the mean of its divisors is an integer number (211751035).

Almost surely, 2^423502069 is an apocalyptic number.

It is an amenable number.

423502069 is a deficient number, since it is larger than the sum of its proper divisors (1).

423502069 is an equidigital number, since it uses as much as digits as its factorization.

423502069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 423502069 is about 20579.1658966052. The cubic root of 423502069 is about 750.9629521388.

The spelling of 423502069 in words is "four hundred twenty-three million, five hundred two thousand, sixty-nine".