775920307 has 8 divisors (see below), whose sum is σ = 821839392. Its totient is φ = 730032000.

The previous prime is 775920293. The next prime is 775920311. The reversal of 775920307 is 703029577.

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

It is a cyclic number.

It is not a de Polignac number, because 775920307 - 2⁷ = 775920179 is a prime.

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 775920307.

It is not an unprimeable number, because it can be changed into a prime (775927307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62682 + ... + 74032.

It is an arithmetic number, because the mean of its divisors is an integer number (102729924).

Almost surely, 2^775920307 is an apocalyptic number.

775920307 is a deficient number, since it is larger than the sum of its proper divisors (45919085).

775920307 is a wasteful number, since it uses less digits than its factorization.

775920307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15389.

The product of its (nonzero) digits is 92610, while the sum is 40.

The square root of 775920307 is about 27855.3461116533. The cubic root of 775920307 is about 918.9087198475.

The spelling of 775920307 in words is "seven hundred seventy-five million, nine hundred twenty thousand, three hundred seven".