799961 has 2 divisors, whose sum is σ = 799962.
Its totient is φ = 799960.
The previous prime is 799949. The next prime is 799979. The reversal of 799961 is 169997.
It can be divided in two parts, 79996 and 1, that added together give a palindrome (79997).
It is a happy number.
799961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 462400 + 337561 = 680^2 + 581^2
It is a cyclic number.
It is not a de Polignac number, because 799961 - 210 = 798937 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (799921) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399980 + 399981.
It is an arithmetic number, because the mean of its divisors is an integer number (399981).
2799961 is an apocalyptic number.
It is an amenable number.
799961 is a deficient number, since it is larger than the sum of its proper divisors (1).
799961 is an equidigital number, since it uses as much as digits as its factorization.
799961 is an evil number, because the sum of its binary digits is even.
The product of its digits is 30618, while the sum is 41.
The square root of 799961 is about 894.4053890714.
The cubic root of 799961 is about 92.8302681314.
The spelling of 799961 in words is "seven hundred ninety-nine thousand, nine hundred sixty-one".