12621069 has 8 divisors (see below), whose sum is σ = 18697920. Its totient is φ = 8414028.

The previous prime is 12621067. The next prime is 12621109. The reversal of 12621069 is 96012621.

It is not a de Polignac number, because 12621069 - 2¹ = 12621067 is a prime.

It is a super-2 number, since 2×12621069² = 318582765405522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 467447 = 12621069 / (1 + 2 + 6 + 2 + 1 + 0 + 6 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12621067) 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, 233697 + ... + 233750.

It is an arithmetic number, because the mean of its divisors is an integer number (2337240).

Almost surely, 2^12621069 is an apocalyptic number.

It is an amenable number.

12621069 is a deficient number, since it is larger than the sum of its proper divisors (6076851).

12621069 is an equidigital number, since it uses as much as digits as its factorization.

12621069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467456 (or 467450 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12621069 is about 3552.6143894321. The cubic root of 12621069 is about 232.8263056150.

The spelling of 12621069 in words is "twelve million, six hundred twenty-one thousand, sixty-nine".