4021316939 has 2 divisors, whose sum is σ = 4021316940. Its totient is φ = 4021316938.

The previous prime is 4021316891. The next prime is 4021317059. The reversal of 4021316939 is 9396131204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4021316939 - 2²⁴ = 4004539723 is a prime.

It is a super-3 number, since 3×4021316939³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4021316339) 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, 2010658469 + 2010658470.

It is an arithmetic number, because the mean of its divisors is an integer number (2010658470).

Almost surely, 2^4021316939 is an apocalyptic number.

4021316939 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021316939 is an equidigital number, since it uses as much as digits as its factorization.

4021316939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 4021316939 is about 63413.8544720316. The cubic root of 4021316939 is about 1590.2159350994.

The spelling of 4021316939 in words is "four billion, twenty-one million, three hundred sixteen thousand, nine hundred thirty-nine".