773268821 has 16 divisors (see below), whose sum is σ = 877981440. Its totient is φ = 675138240.

The previous prime is 773268799. The next prime is 773268823. The reversal of 773268821 is 128862377.

It is a happy number.

773268821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-773268821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (773268823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178916 + ... + 183186.

It is an arithmetic number, because the mean of its divisors is an integer number (54873840).

Almost surely, 2^773268821 is an apocalyptic number.

It is an amenable number.

773268821 is a deficient number, since it is larger than the sum of its proper divisors (104712619).

773268821 is a wasteful number, since it uses less digits than its factorization.

773268821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036.

The product of its digits is 225792, while the sum is 44.

The square root of 773268821 is about 27807.7115383485. The cubic root of 773268821 is about 917.8608226247.

The spelling of 773268821 in words is "seven hundred seventy-three million, two hundred sixty-eight thousand, eight hundred twenty-one".