798121 has 2 divisors, whose sum is σ = 798122. Its totient is φ = 798120.

The previous prime is 798101. The next prime is 798131. The reversal of 798121 is 121897.

798121 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., 698896 + 99225 = 836^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 798121 - 2⁵ = 798089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 798121.

It is not a weakly prime, because it can be changed into another prime (798101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399060 + 399061.

It is an arithmetic number, because the mean of its divisors is an integer number (399061).

2⁷⁹⁸¹²¹ is an apocalyptic number.

It is an amenable number.

798121 is a deficient number, since it is larger than the sum of its proper divisors (1).

798121 is an equidigital number, since it uses as much as digits as its factorization.

798121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 28.

The square root of 798121 is about 893.3761805645. The cubic root of 798121 is about 92.7590401507.

It can be divided in two parts, 798 and 121, that added together give a palindrome (919).

The spelling of 798121 in words is "seven hundred ninety-eight thousand, one hundred twenty-one".