4640843 has 2 divisors, whose sum is σ = 4640844. Its totient is φ = 4640842.

The previous prime is 4640837. The next prime is 4640863. The reversal of 4640843 is 3480464.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4640843 is a prime.

It is not a weakly prime, because it can be changed into another prime (4640803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320421 + 2320422.

It is an arithmetic number, because the mean of its divisors is an integer number (2320422).

Almost surely, 2^4640843 is an apocalyptic number.

4640843 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640843 is an equidigital number, since it uses as much as digits as its factorization.

4640843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 4640843 is about 2154.2615904295. The cubic root of 4640843 is about 166.8011186180.

The spelling of 4640843 in words is "four million, six hundred forty thousand, eight hundred forty-three".