772473685 has 8 divisors (see below), whose sum is σ = 930816216. Its totient is φ = 615413760.

The previous prime is 772473677. The next prime is 772473731. The reversal of 772473685 is 586374277.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 313785796 + 458687889 = 17714^2 + 21417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 772473685 - 2³ = 772473677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 319324 + ... + 321733.

It is an arithmetic number, because the mean of its divisors is an integer number (116352027).

Almost surely, 2^772473685 is an apocalyptic number.

It is an amenable number.

772473685 is a deficient number, since it is larger than the sum of its proper divisors (158342531).

772473685 is a wasteful number, since it uses less digits than its factorization.

772473685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641303.

The product of its digits is 1975680, while the sum is 49.

The square root of 772473685 is about 27793.4108198328. The cubic root of 772473685 is about 917.5461090950.

The spelling of 772473685 in words is "seven hundred seventy-two million, four hundred seventy-three thousand, six hundred eighty-five".