84664225 has 6 divisors (see below), whose sum is σ = 104983670. Its totient is φ = 67731360.

The previous prime is 84664213. The next prime is 84664241. The reversal of 84664225 is 52246648.

It can be written as a sum of positive squares in 3 ways, for example, as 5934096 + 78730129 = 2436^2 + 8873^2 .

It is a de Polignac number, because none of the positive numbers 2^k-84664225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1693260 + ... + 1693309.

Almost surely, 2^84664225 is an apocalyptic number.

It is an amenable number.

84664225 is a deficient number, since it is larger than the sum of its proper divisors (20319445).

84664225 is a wasteful number, since it uses less digits than its factorization.

84664225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386579 (or 3386574 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 84664225 is about 9201.3164818954. The cubic root of 84664225 is about 439.1032441725.

The spelling of 84664225 in words is "eighty-four million, six hundred sixty-four thousand, two hundred twenty-five".