2908643 has 4 divisors (see below), whose sum is σ = 2919648. Its totient is φ = 2897640.

The previous prime is 2908627. The next prime is 2908651. The reversal of 2908643 is 3468092.

2908643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2908643 - 2⁴ = 2908627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2908673) 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 3 ways as a sum of consecutive naturals, for example, 5096 + ... + 5637.

It is an arithmetic number, because the mean of its divisors is an integer number (729912).

2^2908643 is an apocalyptic number.

2908643 is a deficient number, since it is larger than the sum of its proper divisors (11005).

2908643 is a wasteful number, since it uses less digits than its factorization.

2908643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11004.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2908643 is about 1705.4744207991. The cubic root of 2908643 is about 142.7458442156.

The spelling of 2908643 in words is "two million, nine hundred eight thousand, six hundred forty-three".