4643279 has 2 divisors, whose sum is σ = 4643280. Its totient is φ = 4643278.

The previous prime is 4643257. The next prime is 4643297. The reversal of 4643279 is 9723464.

Together with next prime (4643297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4643279 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4643299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321639 + 2321640.

It is an arithmetic number, because the mean of its divisors is an integer number (2321640).

Almost surely, 2^4643279 is an apocalyptic number.

4643279 is a deficient number, since it is larger than the sum of its proper divisors (1).

4643279 is an equidigital number, since it uses as much as digits as its factorization.

4643279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 4643279 is about 2154.8269072016. The cubic root of 4643279 is about 166.8302984065.

The spelling of 4643279 in words is "four million, six hundred forty-three thousand, two hundred seventy-nine".