434861869 has 4 divisors (see below), whose sum is σ = 468312796. Its totient is φ = 401410944.

The previous prime is 434861839. The next prime is 434861879. The reversal of 434861869 is 968168434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 968168434 = 2 ⋅484084217.

It can be written as a sum of positive squares in 2 ways, for example, as 160528900 + 274332969 = 12670^2 + 16563^2 .

It is a cyclic number.

It is not a de Polignac number, because 434861869 - 2⁵ = 434861837 is a prime.

It is a super-2 number, since 2×434861869² = 378209690220346322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434861839) 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 in 3 ways as a sum of consecutive naturals, for example, 16725444 + ... + 16725469.

It is an arithmetic number, because the mean of its divisors is an integer number (117078199).

Almost surely, 2^434861869 is an apocalyptic number.

It is an amenable number.

434861869 is a deficient number, since it is larger than the sum of its proper divisors (33450927).

434861869 is a wasteful number, since it uses less digits than its factorization.

434861869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33450926.

The product of its digits is 995328, while the sum is 49.

The square root of 434861869 is about 20853.3419144270. The cubic root of 434861869 is about 757.6182761793.

The spelling of 434861869 in words is "four hundred thirty-four million, eight hundred sixty-one thousand, eight hundred sixty-nine".