12641629 has 32 divisors (see below), whose sum is σ = 17305344. Its totient is φ = 8916480.

The previous prime is 12641623. The next prime is 12641639. The reversal of 12641629 is 92614621.

12641629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12641629 - 2¹³ = 12633437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12641629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72987 + ... + 73159.

It is an arithmetic number, because the mean of its divisors is an integer number (540792).

Almost surely, 2^12641629 is an apocalyptic number.

12641629 is the 2249-th heptagonal number.

It is an amenable number.

12641629 is a deficient number, since it is larger than the sum of its proper divisors (4663715).

12641629 is a wasteful number, since it uses less digits than its factorization.

12641629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its digits is 5184, while the sum is 31.

The square root of 12641629 is about 3555.5068555693. The cubic root of 12641629 is about 232.9526634237.

The spelling of 12641629 in words is "twelve million, six hundred forty-one thousand, six hundred twenty-nine".