84617225 has 48 divisors (see below), whose sum is σ = 132312960. Its totient is φ = 52147200.

The previous prime is 84617219. The next prime is 84617227. The reversal of 84617225 is 52271648.

It is not a de Polignac number, because 84617225 - 2¹⁰ = 84616201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84617227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 217331 + ... + 217719.

It is an arithmetic number, because the mean of its divisors is an integer number (2756520).

Almost surely, 2^84617225 is an apocalyptic number.

It is an amenable number.

84617225 is a deficient number, since it is larger than the sum of its proper divisors (47695735).

84617225 is a wasteful number, since it uses less digits than its factorization.

84617225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 525 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 84617225 is about 9198.7621449845. The cubic root of 84617225 is about 439.0219754014.

The spelling of 84617225 in words is "eighty-four million, six hundred seventeen thousand, two hundred twenty-five".