12703845 has 64 divisors (see below), whose sum is σ = 26873856. Its totient is φ = 4961280.

The previous prime is 12703813. The next prime is 12703849. The reversal of 12703845 is 54830721.

It is not a de Polignac number, because 12703845 - 2⁵ = 12703813 is a prime.

It is a super-2 number, since 2×12703845² = 322775355568050, which contains 22 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 (12703849) 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 63 ways as a sum of consecutive naturals, for example, 19312 + ... + 19958.

It is an arithmetic number, because the mean of its divisors is an integer number (419904).

Almost surely, 2^12703845 is an apocalyptic number.

12703845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12703845 is an abundant number, since it is smaller than the sum of its proper divisors (14170011).

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

12703845 is a wasteful number, since it uses less digits than its factorization.

12703845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 12703845 is about 3564.2453619245. The cubic root of 12703845 is about 233.3341984095.

It can be divided in two parts, 1270 and 3845, that added together give a palindrome (5115).

The spelling of 12703845 in words is "twelve million, seven hundred three thousand, eight hundred forty-five".