779949 has 10 divisors (see below), whose sum is σ = 1165230. Its totient is φ = 519912.

The previous prime is 779939. The next prime is 779971. The reversal of 779949 is 949977.

It can be written as a sum of positive squares in only one way, i.e., 777924 + 2025 = 882^2 + 45^2 .

It is not a de Polignac number, because 779949 - 2⁸ = 779693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4734 + ... + 4895.

It is an arithmetic number, because the mean of its divisors is an integer number (116523).

2⁷⁷⁹⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

779949 is a deficient number, since it is larger than the sum of its proper divisors (385281).

779949 is an equidigital number, since it uses as much as digits as its factorization.

779949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9641 (or 9632 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 779949 is about 883.1472130964. The cubic root of 779949 is about 92.0496345277.

It can be divided in two parts, 779 and 949, that added together give a cube (1728 = 12³).

The spelling of 779949 in words is "seven hundred seventy-nine thousand, nine hundred forty-nine".