847222625 has 16 divisors (see below), whose sum is σ = 1119532752. Its totient is φ = 637907200.

The previous prime is 847222619. The next prime is 847222637. The reversal of 847222625 is 526222748.

It can be written as a sum of positive squares in 8 ways, for example, as 365727376 + 481495249 = 19124^2 + 21943^2 .

It is not a de Polignac number, because 847222625 - 2¹⁰ = 847221601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197222 + ... + 201471.

It is an arithmetic number, because the mean of its divisors is an integer number (69970797).

Almost surely, 2^847222625 is an apocalyptic number.

847222625 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

847222625 is a deficient number, since it is larger than the sum of its proper divisors (272310127).

847222625 is a wasteful number, since it uses less digits than its factorization.

847222625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398725 (or 398715 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 847222625 is about 29107.0889131840. The cubic root of 847222625 is about 946.2353784241.

The spelling of 847222625 in words is "eight hundred forty-seven million, two hundred twenty-two thousand, six hundred twenty-five".