3447443869 has 2 divisors, whose sum is σ = 3447443870. Its totient is φ = 3447443868.

The previous prime is 3447443827. The next prime is 3447443873. The reversal of 3447443869 is 9683447443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1828588644 + 1618855225 = 42762^2 + 40235^2 .

It is a cyclic number.

It is not a de Polignac number, because 3447443869 - 2²⁷ = 3313226141 is a prime.

It is a super-2 number, since 2×3447443869² = 23769738459811378322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3447443899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1723721934 + 1723721935.

It is an arithmetic number, because the mean of its divisors is an integer number (1723721935).

Almost surely, 2^3447443869 is an apocalyptic number.

It is an amenable number.

3447443869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3447443869 is an equidigital number, since it uses as much as digits as its factorization.

3447443869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 52.

The square root of 3447443869 is about 58714.9373583929. The cubic root of 3447443869 is about 1510.6565378853.

The spelling of 3447443869 in words is "three billion, four hundred forty-seven million, four hundred forty-three thousand, eight hundred sixty-nine".