12782475 has 48 divisors (see below), whose sum is σ = 24328800. Its totient is φ = 6572160.

The previous prime is 12782467. The next prime is 12782479. The reversal of 12782475 is 57428721.

It is not a de Polignac number, because 12782475 - 2³ = 12782467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12782479) 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 47 ways as a sum of consecutive naturals, for example, 19249 + ... + 19901.

It is an arithmetic number, because the mean of its divisors is an integer number (506850).

Almost surely, 2^12782475 is an apocalyptic number.

12782475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12782475 is a deficient number, since it is larger than the sum of its proper divisors (11546325).

12782475 is a wasteful number, since it uses less digits than its factorization.

12782475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 690 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 12782475 is about 3575.2587318962. The cubic root of 12782475 is about 233.8146131921.

The spelling of 12782475 in words is "twelve million, seven hundred eighty-two thousand, four hundred seventy-five".