7879971433 has 2 divisors, whose sum is σ = 7879971434. Its totient is φ = 7879971432.

The previous prime is 7879971409. The next prime is 7879971487. The reversal of 7879971433 is 3341799787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4346501184 + 3533470249 = 65928^2 + 59443^2 .

It is an emirp because it is prime and its reverse (3341799787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7879971433 - 2⁵ = 7879971401 is a prime.

It is not a weakly prime, because it can be changed into another prime (7879971133) 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, 3939985716 + 3939985717.

It is an arithmetic number, because the mean of its divisors is an integer number (3939985717).

Almost surely, 2^7879971433 is an apocalyptic number.

It is an amenable number.

7879971433 is a deficient number, since it is larger than the sum of its proper divisors (1).

7879971433 is an equidigital number, since it uses as much as digits as its factorization.

7879971433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8001504, while the sum is 58.

The square root of 7879971433 is about 88769.2031788052. The cubic root of 7879971433 is about 1989.9471744266.

The spelling of 7879971433 in words is "seven billion, eight hundred seventy-nine million, nine hundred seventy-one thousand, four hundred thirty-three".