849878825 has 12 divisors (see below), whose sum is σ = 1054320540. Its totient is φ = 679599360.

The previous prime is 849878753. The next prime is 849878831. The reversal of 849878825 is 528878948.

It can be written as a sum of positive squares in 6 ways, for example, as 89718784 + 760160041 = 9472^2 + 27571^2 .

It is not a de Polignac number, because 849878825 - 2¹⁰ = 849877801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61997 + ... + 74453.

It is an arithmetic number, because the mean of its divisors is an integer number (87860045).

Almost surely, 2^849878825 is an apocalyptic number.

It is an amenable number.

849878825 is a deficient number, since it is larger than the sum of its proper divisors (204441715).

849878825 is a wasteful number, since it uses less digits than its factorization.

849878825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15196 (or 15191 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 59.

The square root of 849878825 is about 29152.6812660517. The cubic root of 849878825 is about 947.2232212315.

The spelling of 849878825 in words is "eight hundred forty-nine million, eight hundred seventy-eight thousand, eight hundred twenty-five".