847228655 has 32 divisors (see below), whose sum is σ = 1256091648. Its totient is φ = 534211200.

The previous prime is 847228651. The next prime is 847228661. The reversal of 847228655 is 556822748.

It is not a de Polignac number, because 847228655 - 2² = 847228651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847228651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119870 + ... + 126740.

It is an arithmetic number, because the mean of its divisors is an integer number (39252864).

Almost surely, 2^847228655 is an apocalyptic number.

847228655 is a deficient number, since it is larger than the sum of its proper divisors (408862993).

847228655 is a wasteful number, since it uses less digits than its factorization.

847228655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7167.

The product of its digits is 1075200, while the sum is 47.

The square root of 847228655 is about 29107.1924960138. The cubic root of 847228655 is about 946.2376233223.

The spelling of 847228655 in words is "eight hundred forty-seven million, two hundred twenty-eight thousand, six hundred fifty-five".