879161993 has 2 divisors, whose sum is σ = 879161994. Its totient is φ = 879161992.

The previous prime is 879161929. The next prime is 879162013. The reversal of 879161993 is 399161978.

879161993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 573506704 + 305655289 = 23948^2 + 17483^2 .

It is a cyclic number.

It is not a de Polignac number, because 879161993 - 2⁶ = 879161929 is a prime.

It is not a weakly prime, because it can be changed into another prime (879161093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439580996 + 439580997.

It is an arithmetic number, because the mean of its divisors is an integer number (439580997).

Almost surely, 2^879161993 is an apocalyptic number.

It is an amenable number.

879161993 is a deficient number, since it is larger than the sum of its proper divisors (1).

879161993 is an equidigital number, since it uses as much as digits as its factorization.

879161993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 53.

The square root of 879161993 is about 29650.6659790299. The cubic root of 879161993 is about 957.9796897004.

The spelling of 879161993 in words is "eight hundred seventy-nine million, one hundred sixty-one thousand, nine hundred ninety-three".