12884725 has 48 divisors (see below), whose sum is σ = 19927296. Its totient is φ = 8064000.

The previous prime is 12884699. The next prime is 12884737. The reversal of 12884725 is 52748821.

12884725 = T₁ + T₂ + ... + T₄₂₅.

12884725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

12884725 is a nontrivial binomial coefficient, being equal to C(427, 3).

It is not a de Polignac number, because 12884725 - 2¹¹ = 12882677 is a prime.

It is a super-2 number, since 2×12884725² = 332032276651250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is the 425-th tetrahedral number.

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 47 ways as a sum of consecutive naturals, for example, 181440 + ... + 181510.

It is an arithmetic number, because the mean of its divisors is an integer number (415152).

Almost surely, 2^12884725 is an apocalyptic number.

It is an amenable number.

12884725 is a deficient number, since it is larger than the sum of its proper divisors (7042571).

12884725 is a wasteful number, since it uses less digits than its factorization.

12884725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 161 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 12884725 is about 3589.5299135124. The cubic root of 12884725 is about 234.4364040595.

The spelling of 12884725 in words is "twelve million, eight hundred eighty-four thousand, seven hundred twenty-five".