8578725 has 24 divisors (see below), whose sum is σ = 14329440. Its totient is φ = 4528320.

The previous prime is 8578711. The next prime is 8578729. The reversal of 8578725 is 5278758.

It is a happy number.

It is not a de Polignac number, because 8578725 - 2¹⁷ = 8447653 is a prime.

It is a super-3 number, since 3×8578725³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8578729) 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 23 ways as a sum of consecutive naturals, for example, 7491 + ... + 8559.

It is an arithmetic number, because the mean of its divisors is an integer number (597060).

Almost surely, 2^8578725 is an apocalyptic number.

It is an amenable number.

8578725 is a deficient number, since it is larger than the sum of its proper divisors (5750715).

8578725 is a wasteful number, since it uses less digits than its factorization.

8578725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1184 counting only the distinct ones).

The product of its digits is 156800, while the sum is 42.

The square root of 8578725 is about 2928.9460561779. The cubic root of 8578725 is about 204.7108753873.

The spelling of 8578725 in words is "eight million, five hundred seventy-eight thousand, seven hundred twenty-five".