3436376221 has 4 divisors (see below), whose sum is σ = 3529251292. Its totient is φ = 3343501152.

The previous prime is 3436376197. The next prime is 3436376263. The reversal of 3436376221 is 1226736343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1226736343 = 7 ⋅175248049.

It can be written as a sum of positive squares in 2 ways, for example, as 2780452900 + 655923321 = 52730^2 + 25611^2 .

It is not a de Polignac number, because 3436376221 - 2⁷ = 3436376093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 92875033 = 3436376221 / (3 + 4 + 3 + 6 + 3 + 7 + 6 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3436371221) 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, 46437480 + ... + 46437553.

It is an arithmetic number, because the mean of its divisors is an integer number (882312823).

Almost surely, 2^3436376221 is an apocalyptic number.

It is an amenable number.

3436376221 is a deficient number, since it is larger than the sum of its proper divisors (92875071).

3436376221 is an equidigital number, since it uses as much as digits as its factorization.

3436376221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92875070.

The product of its digits is 108864, while the sum is 37.

The square root of 3436376221 is about 58620.6125948885. The cubic root of 3436376221 is about 1509.0382046711.

The spelling of 3436376221 in words is "three billion, four hundred thirty-six million, three hundred seventy-six thousand, two hundred twenty-one".