3643270849 has 2 divisors, whose sum is σ = 3643270850. Its totient is φ = 3643270848.

The previous prime is 3643270781. The next prime is 3643270871. The reversal of 3643270849 is 9480723463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3602400400 + 40870449 = 60020^2 + 6393^2 .

It is a cyclic number.

It is not a de Polignac number, because 3643270849 - 2²³ = 3634882241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3643270799 and 3643270808.

It is not a weakly prime, because it can be changed into another prime (3643270049) 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 as a sum of consecutive naturals, namely, 1821635424 + 1821635425.

It is an arithmetic number, because the mean of its divisors is an integer number (1821635425).

Almost surely, 2^3643270849 is an apocalyptic number.

It is an amenable number.

3643270849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643270849 is an equidigital number, since it uses as much as digits as its factorization.

3643270849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 3643270849 is about 60359.5133264012. The cubic root of 3643270849 is about 1538.7349549472.

The spelling of 3643270849 in words is "three billion, six hundred forty-three million, two hundred seventy thousand, eight hundred forty-nine".