684525485 has 48 divisors (see below), whose sum is σ = 1012144896. Its totient is φ = 433841664.

The previous prime is 684525481. The next prime is 684525487. The reversal of 684525485 is 584525486.

684525485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 684525485 - 2² = 684525481 is a prime.

It is a super-2 number, since 2×684525485² = 937150279228970450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684525481) 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, 4098872 + ... + 4099038.

It is an arithmetic number, because the mean of its divisors is an integer number (21086352).

Almost surely, 2^684525485 is an apocalyptic number.

It is an amenable number.

684525485 is a deficient number, since it is larger than the sum of its proper divisors (327619411).

684525485 is a wasteful number, since it uses less digits than its factorization.

684525485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 279 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 47.

The square root of 684525485 is about 26163.4379430533. The cubic root of 684525485 is about 881.3123862411.

Subtracting from 684525485 its reverse (584525486), we obtain a palindrome (99999999).

It can be divided in two parts, 68452 and 5485, that added together give a palindrome (73937).

The spelling of 684525485 in words is "six hundred eighty-four million, five hundred twenty-five thousand, four hundred eighty-five".