4078867321 has 2 divisors, whose sum is σ = 4078867322. Its totient is φ = 4078867320.

The previous prime is 4078867279. The next prime is 4078867349. The reversal of 4078867321 is 1237688704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4078227321 + 640000 = 63861^2 + 800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4078867321 is a prime.

It is not a weakly prime, because it can be changed into another prime (4078867721) 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 as a sum of consecutive naturals, namely, 2039433660 + 2039433661.

It is an arithmetic number, because the mean of its divisors is an integer number (2039433661).

Almost surely, 2^4078867321 is an apocalyptic number.

It is an amenable number.

4078867321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4078867321 is an equidigital number, since it uses as much as digits as its factorization.

4078867321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 4078867321 is about 63866.0106864363. The cubic root of 4078867321 is about 1597.7660648320.

The spelling of 4078867321 in words is "four billion, seventy-eight million, eight hundred sixty-seven thousand, three hundred twenty-one".