3421663769 has 4 divisors (see below), whose sum is σ = 3427002420. Its totient is φ = 3416325120.

The previous prime is 3421663757. The next prime is 3421663771. The reversal of 3421663769 is 9673661243.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1665048025 + 1756615744 = 40805^2 + 41912^2 .

It is a cyclic number.

It is not a de Polignac number, because 3421663769 - 2²⁰ = 3420615193 is a prime.

It is a super-2 number, since 2×3421663769² = 23415565896174570722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3421663709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2668364 + ... + 2669645.

It is an arithmetic number, because the mean of its divisors is an integer number (856750605).

Almost surely, 2^3421663769 is an apocalyptic number.

It is an amenable number.

3421663769 is a deficient number, since it is larger than the sum of its proper divisors (5338651).

3421663769 is an equidigital number, since it uses as much as digits as its factorization.

3421663769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338650.

The product of its digits is 979776, while the sum is 47.

The square root of 3421663769 is about 58494.9892640387. The cubic root of 3421663769 is about 1506.8815323596.

The spelling of 3421663769 in words is "three billion, four hundred twenty-one million, six hundred sixty-three thousand, seven hundred sixty-nine".