855071228 has 24 divisors (see below), whose sum is σ = 1634715264. Its totient is φ = 388119600.

The previous prime is 855071227. The next prime is 855071249. The reversal of 855071228 is 822170558.

It is a happy number.

It is a super-3 number, since 3×855071228³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 855071191 and 855071200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855071227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18623 + ... + 45353.

It is an arithmetic number, because the mean of its divisors is an integer number (68113136).

Almost surely, 2^855071228 is an apocalyptic number.

It is an amenable number.

855071228 is a deficient number, since it is larger than the sum of its proper divisors (779644036).

855071228 is a wasteful number, since it uses less digits than its factorization.

855071228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27473 (or 27471 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 855071228 is about 29241.6009821624. The cubic root of 855071228 is about 949.1483514303.

The spelling of 855071228 in words is "eight hundred fifty-five million, seventy-one thousand, two hundred twenty-eight".