436423969 has 2 divisors, whose sum is σ = 436423970. Its totient is φ = 436423968.

The previous prime is 436423961. The next prime is 436423973. The reversal of 436423969 is 969324634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248377600 + 188046369 = 15760^2 + 13713^2 .

It is a cyclic number.

It is not a de Polignac number, because 436423969 - 2³ = 436423961 is a prime.

It is a super-2 number, since 2×436423969² = 380931761435425922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (436423961) 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, 218211984 + 218211985.

It is an arithmetic number, because the mean of its divisors is an integer number (218211985).

Almost surely, 2^436423969 is an apocalyptic number.

It is an amenable number.

436423969 is a deficient number, since it is larger than the sum of its proper divisors (1).

436423969 is an equidigital number, since it uses as much as digits as its factorization.

436423969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 46.

The square root of 436423969 is about 20890.7627673094. The cubic root of 436423969 is about 758.5243579576.

The spelling of 436423969 in words is "four hundred thirty-six million, four hundred twenty-three thousand, nine hundred sixty-nine".