772080347 has 4 divisors (see below), whose sum is σ = 817496856. Its totient is φ = 726663840.

The previous prime is 772080301. The next prime is 772080349. The reversal of 772080347 is 743080277.

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

It is a cyclic number.

It is not a de Polignac number, because 772080347 - 2²² = 767886043 is a prime.

It is a super-2 number, since 2×772080347² = 1192216124447280818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 772080347.

It is not an unprimeable number, because it can be changed into a prime (772080349) 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 3 ways as a sum of consecutive naturals, for example, 22708229 + ... + 22708262.

It is an arithmetic number, because the mean of its divisors is an integer number (204374214).

Almost surely, 2^772080347 is an apocalyptic number.

772080347 is a deficient number, since it is larger than the sum of its proper divisors (45416509).

772080347 is a wasteful number, since it uses less digits than its factorization.

772080347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45416508.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 772080347 is about 27786.3338171843. Note that the first 3 decimals coincide. The cubic root of 772080347 is about 917.3903467121.

The spelling of 772080347 in words is "seven hundred seventy-two million, eighty thousand, three hundred forty-seven".