773640347 has 4 divisors (see below), whose sum is σ = 814358280. Its totient is φ = 732922416.

The previous prime is 773640341. The next prime is 773640377. The reversal of 773640347 is 743046377.

773640347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 773640347 - 2¹⁶ = 773574811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (773640341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20358938 + ... + 20358975.

It is an arithmetic number, because the mean of its divisors is an integer number (203589570).

Almost surely, 2^773640347 is an apocalyptic number.

773640347 is a deficient number, since it is larger than the sum of its proper divisors (40717933).

773640347 is a wasteful number, since it uses less digits than its factorization.

773640347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40717932.

The product of its (nonzero) digits is 296352, while the sum is 41.

The square root of 773640347 is about 27814.3910053771. The cubic root of 773640347 is about 918.0077980583.

The spelling of 773640347 in words is "seven hundred seventy-three million, six hundred forty thousand, three hundred forty-seven".