775387422 has 12 divisors (see below), whose sum is σ = 1680006120. Its totient is φ = 258462468.

The previous prime is 775387421. The next prime is 775387427. The reversal of 775387422 is 224783577.

775387422 is a `hidden beast` number, since 77 + 538 + 7 + 42 + 2 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775387421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21538522 + ... + 21538557.

It is an arithmetic number, because the mean of its divisors is an integer number (140000510).

Almost surely, 2^775387422 is an apocalyptic number.

775387422 is an abundant number, since it is smaller than the sum of its proper divisors (904618698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

775387422 is a wasteful number, since it uses less digits than its factorization.

775387422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43077087 (or 43077084 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 775387422 is about 27845.7792492866. The cubic root of 775387422 is about 918.6983095728.

The spelling of 775387422 in words is "seven hundred seventy-five million, three hundred eighty-seven thousand, four hundred twenty-two".