2647129 has 3 divisors (see below), whose sum is σ = 2648757. Its totient is φ = 2645502.

The previous prime is 2647111. The next prime is 2647133. The reversal of 2647129 is 9217462.

The square root of 2647129 is 1627.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2647129 - 2⁵ = 2647097 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁵ + 4⁵ + 7⁵ + 1 + 2²¹ + 9² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2647129.

It is not an unprimeable number, because it can be changed into a prime (2647159) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 814 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (882919).

2^2647129 is an apocalyptic number.

2647129 is the 1627-th square number.

2647129 is the 814-th centered octagonal number.

It is an amenable number.

2647129 is a deficient number, since it is larger than the sum of its proper divisors (1628).

2647129 is an frugal number, since it uses more digits than its factorization.

2647129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254 (or 1627 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The cubic root of 2647129 is about 138.3327578564.

The spelling of 2647129 in words is "two million, six hundred forty-seven thousand, one hundred twenty-nine".