2538647 has 8 divisors (see below), whose sum is σ = 2723760. Its totient is φ = 2358720.

The previous prime is 2538623. The next prime is 2538659. The reversal of 2538647 is 7468352.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2538647 - 2¹² = 2534551 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 5 + 3⁷ + 8³ + 6⁸ + 4² + 7⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538617) 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 7 ways as a sum of consecutive naturals, for example, 254 + ... + 2267.

It is an arithmetic number, because the mean of its divisors is an integer number (340470).

2^2538647 is an apocalyptic number.

2538647 is a deficient number, since it is larger than the sum of its proper divisors (185113).

2538647 is a wasteful number, since it uses less digits than its factorization.

2538647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593.

The product of its digits is 40320, while the sum is 35.

The square root of 2538647 is about 1593.3132146568. The cubic root of 2538647 is about 136.4166683563.

The spelling of 2538647 in words is "two million, five hundred thirty-eight thousand, six hundred forty-seven".