2624643 has 24 divisors (see below), whose sum is σ = 4496128. Its totient is φ = 1498824.

The previous prime is 2624639. The next prime is 2624653. The reversal of 2624643 is 3464262.

It is not a de Polignac number, because 2624643 - 2² = 2624639 is a prime.

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

It is a d-powerful number, because it can be written as 2¹⁷ + 6⁵ + 2¹⁹ + 4³ + 6⁸ + 4⁹ + 3⁹ .

It is not an unprimeable number, because it can be changed into a prime (2624623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 930 + ... + 2472.

2^2624643 is an apocalyptic number.

2624643 is a deficient number, since it is larger than the sum of its proper divisors (1871485).

2624643 is an equidigital number, since it uses as much as digits as its factorization.

2624643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565 (or 1553 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 2624643 is about 1620.0749982640. The cubic root of 2624643 is about 137.9399549741.

The spelling of 2624643 in words is "two million, six hundred twenty-four thousand, six hundred forty-three".