2308643 has 4 divisors (see below), whose sum is σ = 2320560. Its totient is φ = 2296728.

The previous prime is 2308637. The next prime is 2308673. The reversal of 2308643 is 3468032.

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 2308643 - 2⁸ = 2308387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2308673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5663 + ... + 6056.

It is an arithmetic number, because the mean of its divisors is an integer number (580140).

2^2308643 is an apocalyptic number.

2308643 is a deficient number, since it is larger than the sum of its proper divisors (11917).

2308643 is a wasteful number, since it uses less digits than its factorization.

2308643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11916.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2308643 is about 1519.4219295508. The cubic root of 2308643 is about 132.1657506128.

The spelling of 2308643 in words is "two million, three hundred eight thousand, six hundred forty-three".