799949 has 2 divisors, whose sum is σ = 799950. Its totient is φ = 799948.

The previous prime is 799921. The next prime is 799961. The reversal of 799949 is 949997.

799949 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., 797449 + 2500 = 893^2 + 50^2 .

It is an emirp because it is prime and its reverse (949997) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-799949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (799979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399974 + 399975.

It is an arithmetic number, because the mean of its divisors is an integer number (399975).

2⁷⁹⁹⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

799949 is a deficient number, since it is larger than the sum of its proper divisors (1).

799949 is an equidigital number, since it uses as much as digits as its factorization.

799949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 47.

The square root of 799949 is about 894.3986806788. The cubic root of 799949 is about 92.8298039551.

The spelling of 799949 in words is "seven hundred ninety-nine thousand, nine hundred forty-nine".