770228 has 6 divisors (see below), whose sum is σ = 1347906. Its totient is φ = 385112.

The previous prime is 770227. The next prime is 770233. The reversal of 770228 is 822077.

It can be written as a sum of positive squares in only one way, i.e., 487204 + 283024 = 698^2 + 532^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 770197 and 770206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96275 + ... + 96282.

It is an arithmetic number, because the mean of its divisors is an integer number (224651).

2⁷⁷⁰²²⁸ is an apocalyptic number.

It is an amenable number.

770228 is a deficient number, since it is larger than the sum of its proper divisors (577678).

770228 is a wasteful number, since it uses less digits than its factorization.

770228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192561 (or 192559 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 770228 is about 877.6263441807. The cubic root of 770228 is about 91.6656102725.

The spelling of 770228 in words is "seven hundred seventy thousand, two hundred twenty-eight".