84807225 has 18 divisors (see below), whose sum is σ = 151899566. Its totient is φ = 45230400.

The previous prime is 84807209. The next prime is 84807253. The reversal of 84807225 is 52270848.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 22838841 + 61968384 = 4779^2 + 7872^2 .

It is not a de Polignac number, because 84807225 - 2⁴ = 84807209 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84807225.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 188236 + ... + 188685.

Almost surely, 2^84807225 is an apocalyptic number.

It is an amenable number.

84807225 is a deficient number, since it is larger than the sum of its proper divisors (67092341).

84807225 is a wasteful number, since it uses less digits than its factorization.

84807225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376937 (or 376929 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 84807225 is about 9209.0838306533. The cubic root of 84807225 is about 439.3503239151.

The spelling of 84807225 in words is "eighty-four million, eight hundred seven thousand, two hundred twenty-five".