84725765 has 8 divisors (see below), whose sum is σ = 101739768. Its totient is φ = 67734720.

The previous prime is 84725749. The next prime is 84725777. The reversal of 84725765 is 56752748.

It can be written as a sum of positive squares in 4 ways, for example, as 2024929 + 82700836 = 1423^2 + 9094^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84725765 - 2⁴ = 84725749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3839 + ... + 13571.

It is an arithmetic number, because the mean of its divisors is an integer number (12717471).

Almost surely, 2^84725765 is an apocalyptic number.

It is an amenable number.

84725765 is a deficient number, since it is larger than the sum of its proper divisors (17014003).

84725765 is a wasteful number, since it uses less digits than its factorization.

84725765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11479.

The product of its digits is 470400, while the sum is 44.

The square root of 84725765 is about 9204.6599611284. The cubic root of 84725765 is about 439.2096089290.

The spelling of 84725765 in words is "eighty-four million, seven hundred twenty-five thousand, seven hundred sixty-five".