775338771 has 16 divisors (see below), whose sum is σ = 1100935584. Its totient is φ = 483669504.

The previous prime is 775338761. The next prime is 775338791. The reversal of 775338771 is 177833577.

It is not a de Polignac number, because 775338771 - 2¹⁵ = 775306003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 775338771.

It is not an unprimeable number, because it can be changed into a prime (775338761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35116 + ... + 52761.

It is an arithmetic number, because the mean of its divisors is an integer number (68808474).

Almost surely, 2^775338771 is an apocalyptic number.

775338771 is a deficient number, since it is larger than the sum of its proper divisors (325596813).

775338771 is a wasteful number, since it uses less digits than its factorization.

775338771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88070.

The product of its digits is 864360, while the sum is 48.

The square root of 775338771 is about 27844.9056561519. The cubic root of 775338771 is about 918.6790948658.

The spelling of 775338771 in words is "seven hundred seventy-five million, three hundred thirty-eight thousand, seven hundred seventy-one".