3980392345 has 4 divisors (see below), whose sum is σ = 4776470820. Its totient is φ = 3184313872.

The previous prime is 3980392333. The next prime is 3980392369. The reversal of 3980392345 is 5432930893.

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 2696101776 + 1284290569 = 51924^2 + 35837^2 .

It is a cyclic number.

It is not a de Polignac number, because 3980392345 - 2¹⁵ = 3980359577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3980392295 and 3980392304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398039230 + ... + 398039239.

It is an arithmetic number, because the mean of its divisors is an integer number (1194117705).

Almost surely, 2^3980392345 is an apocalyptic number.

It is an amenable number.

3980392345 is a deficient number, since it is larger than the sum of its proper divisors (796078475).

3980392345 is an equidigital number, since it uses as much as digits as its factorization.

3980392345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796078474.

The product of its (nonzero) digits is 699840, while the sum is 46.

The square root of 3980392345 is about 63090.3506488908. The cubic root of 3980392345 is about 1584.8030345657.

The spelling of 3980392345 in words is "three billion, nine hundred eighty million, three hundred ninety-two thousand, three hundred forty-five".