3945744223 has 2 divisors, whose sum is σ = 3945744224. Its totient is φ = 3945744222.

The previous prime is 3945744167. The next prime is 3945744259. The reversal of 3945744223 is 3224475493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3945744223 - 2¹⁷ = 3945613151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3945744223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3945744623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1972872111 + 1972872112.

It is an arithmetic number, because the mean of its divisors is an integer number (1972872112).

Almost surely, 2^3945744223 is an apocalyptic number.

3945744223 is a deficient number, since it is larger than the sum of its proper divisors (1).

3945744223 is an equidigital number, since it uses as much as digits as its factorization.

3945744223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 43.

The square root of 3945744223 is about 62815.1591815224. The cubic root of 3945744223 is about 1580.1912153078.

The spelling of 3945744223 in words is "three billion, nine hundred forty-five million, seven hundred forty-four thousand, two hundred twenty-three".