2053647 has 16 divisors (see below), whose sum is σ = 3175680. Its totient is φ = 1309176.

The previous prime is 2053643. The next prime is 2053661. The reversal of 2053647 is 7463502.

It is a happy number.

It is not a de Polignac number, because 2053647 - 2² = 2053643 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2053647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1033 + ... + 2274.

It is an arithmetic number, because the mean of its divisors is an integer number (198480).

2^2053647 is an apocalyptic number.

2053647 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2053647 is a deficient number, since it is larger than the sum of its proper divisors (1122033).

2053647 is a wasteful number, since it uses less digits than its factorization.

2053647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339 (or 3333 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 2053647 is about 1433.0551280394. The cubic root of 2053647 is about 127.1086964934.

The spelling of 2053647 in words is "two million, fifty-three thousand, six hundred forty-seven".