12872469 has 4 divisors (see below), whose sum is σ = 17163296. Its totient is φ = 8581644.

The previous prime is 12872449. The next prime is 12872473. The reversal of 12872469 is 96427821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12872469 - 2¹¹ = 12870421 is a prime.

It is a super-2 number, since 2×12872469² = 331400916311922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12872429) 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 3 ways as a sum of consecutive naturals, for example, 2145409 + ... + 2145414.

It is an arithmetic number, because the mean of its divisors is an integer number (4290824).

Almost surely, 2^12872469 is an apocalyptic number.

It is an amenable number.

12872469 is a deficient number, since it is larger than the sum of its proper divisors (4290827).

12872469 is an equidigital number, since it uses as much as digits as its factorization.

12872469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4290826.

The product of its digits is 48384, while the sum is 39.

The square root of 12872469 is about 3587.8223200153. The cubic root of 12872469 is about 234.3620482087.

The spelling of 12872469 in words is "twelve million, eight hundred seventy-two thousand, four hundred sixty-nine".