775222 has 8 divisors (see below), whose sum is σ = 1328976. Its totient is φ = 332232.

The previous prime is 775193. The next prime is 775237. The reversal of 775222 is 222577.

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

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

775222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27673 + ... + 27700.

It is an arithmetic number, because the mean of its divisors is an integer number (166122).

2⁷⁷⁵²²² is an apocalyptic number.

775222 is a deficient number, since it is larger than the sum of its proper divisors (553754).

775222 is a wasteful number, since it uses less digits than its factorization.

775222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55382.

The product of its digits is 1960, while the sum is 25.

The square root of 775222 is about 880.4669215820. The cubic root of 775222 is about 91.8632972892.

Adding to 775222 its reverse (222577), we get a palindrome (997799).

The spelling of 775222 in words is "seven hundred seventy-five thousand, two hundred twenty-two".