12704500 has 24 divisors (see below), whose sum is σ = 27747720. Its totient is φ = 5081600.

The previous prime is 12704467. The next prime is 12704507. The reversal of 12704500 is 540721.

It can be written as a sum of positive squares in 4 ways, for example, as 2490084 + 10214416 = 1578^2 + 3196^2 .

It is a super-2 number, since 2×12704500² = 322808640500000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12704507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12205 + ... + 13204.

It is an arithmetic number, because the mean of its divisors is an integer number (1156155).

Almost surely, 2^12704500 is an apocalyptic number.

12704500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12704500 is an abundant number, since it is smaller than the sum of its proper divisors (15043220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12704500 is a wasteful number, since it uses less digits than its factorization.

12704500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25428 (or 25416 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 12704500 is about 3564.3372455479. The cubic root of 12704500 is about 233.3382085149.

The spelling of 12704500 in words is "twelve million, seven hundred four thousand, five hundred".