434859889 has 2 divisors, whose sum is σ = 434859890. Its totient is φ = 434859888.

The previous prime is 434859883. The next prime is 434859947. The reversal of 434859889 is 988958434.

It is an a-pointer prime, because the next prime (434859947) can be obtained adding 434859889 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401601600 + 33258289 = 20040^2 + 5767^2 .

It is a cyclic number.

It is not a de Polignac number, because 434859889 - 2⁵ = 434859857 is a prime.

It is a super-2 number, since 2×434859889² = 378206246122184642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (434859883) 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, 217429944 + 217429945.

It is an arithmetic number, because the mean of its divisors is an integer number (217429945).

Almost surely, 2^434859889 is an apocalyptic number.

It is an amenable number.

434859889 is a deficient number, since it is larger than the sum of its proper divisors (1).

434859889 is an equidigital number, since it uses as much as digits as its factorization.

434859889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9953280, while the sum is 58.

The square root of 434859889 is about 20853.2944399680. The cubic root of 434859889 is about 757.6171263227.

The spelling of 434859889 in words is "four hundred thirty-four million, eight hundred fifty-nine thousand, eight hundred eighty-nine".