3909800943 has 24 divisors (see below), whose sum is σ = 5954083200. Its totient is φ = 2465461584.

The previous prime is 3909800893. The next prime is 3909800953. The reversal of 3909800943 is 3490089093.

It is a de Polignac number, because none of the positive numbers 2^k-3909800943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3909800953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92968 + ... + 128306.

It is an arithmetic number, because the mean of its divisors is an integer number (248086800).

Almost surely, 2^3909800943 is an apocalyptic number.

3909800943 is a deficient number, since it is larger than the sum of its proper divisors (2044282257).

3909800943 is a wasteful number, since it uses less digits than its factorization.

3909800943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36011 (or 36008 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 3909800943 is about 62528.4010910242. The cubic root of 3909800943 is about 1575.3783846738.

The spelling of 3909800943 in words is "three billion, nine hundred nine million, eight hundred thousand, nine hundred forty-three".