84817725 has 24 divisors (see below), whose sum is σ = 143657472. Its totient is φ = 44131200.

The previous prime is 84817717. The next prime is 84817741. The reversal of 84817725 is 52771848.

It is not a de Polignac number, because 84817725 - 2³ = 84817717 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10717 + ... + 16866.

It is an arithmetic number, because the mean of its divisors is an integer number (5985728).

Almost surely, 2^84817725 is an apocalyptic number.

It is an amenable number.

84817725 is a deficient number, since it is larger than the sum of its proper divisors (58839747).

84817725 is a wasteful number, since it uses less digits than its factorization.

84817725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27637 (or 27632 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 84817725 is about 9209.6539022919. The cubic root of 84817725 is about 439.3684551849.

The spelling of 84817725 in words is "eighty-four million, eight hundred seventeen thousand, seven hundred twenty-five".