12698047 has 4 divisors (see below), whose sum is σ = 13250160. Its totient is φ = 12145936.

The previous prime is 12698033. The next prime is 12698051. The reversal of 12698047 is 74089621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12698047 - 2¹¹ = 12695999 is a prime.

It is a super-2 number, since 2×12698047² = 322480795228418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12697997 and 12698015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12698017) 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 3 ways as a sum of consecutive naturals, for example, 276022 + ... + 276067.

It is an arithmetic number, because the mean of its divisors is an integer number (3312540).

Almost surely, 2^12698047 is an apocalyptic number.

12698047 is a deficient number, since it is larger than the sum of its proper divisors (552113).

12698047 is an equidigital number, since it uses as much as digits as its factorization.

12698047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552112.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 12698047 is about 3563.4319131983. The cubic root of 12698047 is about 233.2986953118.

It can be divided in two parts, 1269 and 8047, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 12698047 in words is "twelve million, six hundred ninety-eight thousand, forty-seven".