2608643 has 8 divisors (see below), whose sum is σ = 2761920. Its totient is φ = 2457000.

The previous prime is 2608631. The next prime is 2608649. The reversal of 2608643 is 3468062.

2608643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2608643 - 2⁸ = 2608387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2608649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4496 + ... + 5042.

It is an arithmetic number, because the mean of its divisors is an integer number (345240).

2^2608643 is an apocalyptic number.

2608643 is a deficient number, since it is larger than the sum of its proper divisors (153277).

2608643 is a wasteful number, since it uses less digits than its factorization.

2608643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2608643 is about 1615.1294065802. The cubic root of 2608643 is about 137.6590863908.

The spelling of 2608643 in words is "two million, six hundred eight thousand, six hundred forty-three".