84288725 has 12 divisors (see below), whose sum is σ = 104802816. Its totient is φ = 67247280.

The previous prime is 84288713. The next prime is 84288727. The reversal of 84288725 is 52788248.

It is not a de Polignac number, because 84288725 - 2¹⁸ = 84026581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84288727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5174 + ... + 13976.

It is an arithmetic number, because the mean of its divisors is an integer number (8733568).

Almost surely, 2^84288725 is an apocalyptic number.

It is an amenable number.

84288725 is a deficient number, since it is larger than the sum of its proper divisors (20514091).

84288725 is a wasteful number, since it uses less digits than its factorization.

84288725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9196 (or 9191 counting only the distinct ones).

The product of its digits is 286720, while the sum is 44.

The square root of 84288725 is about 9180.8891181628. The cubic root of 84288725 is about 438.4531166355.

The spelling of 84288725 in words is "eighty-four million, two hundred eighty-eight thousand, seven hundred twenty-five".