12812669 has 8 divisors (see below), whose sum is σ = 13522080. Its totient is φ = 12106800.

The previous prime is 12812663. The next prime is 12812687. The reversal of 12812669 is 96621821.

12812669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12812669 - 2⁸ = 12812413 is a prime.

It is a super-2 number, since 2×12812669² = 328328973807122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12812663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10259 + ... + 11439.

It is an arithmetic number, because the mean of its divisors is an integer number (1690260).

Almost surely, 2^12812669 is an apocalyptic number.

12812669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12812669 is a deficient number, since it is larger than the sum of its proper divisors (709411).

12812669 is a wasteful number, since it uses less digits than its factorization.

12812669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its digits is 10368, while the sum is 35.

The square root of 12812669 is about 3579.4788726852. The cubic root of 12812669 is about 233.9985694022.

The spelling of 12812669 in words is "twelve million, eight hundred twelve thousand, six hundred sixty-nine".