4679621 has 2 divisors, whose sum is σ = 4679622. Its totient is φ = 4679620.

The previous prime is 4679581. The next prime is 4679627. The reversal of 4679621 is 1269764.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4622500 + 57121 = 2150^2 + 239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4679621 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4679627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2339810 + 2339811.

It is an arithmetic number, because the mean of its divisors is an integer number (2339811).

Almost surely, 2^4679621 is an apocalyptic number.

It is an amenable number.

4679621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4679621 is an equidigital number, since it uses as much as digits as its factorization.

4679621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 4679621 is about 2163.2431670989. The cubic root of 4679621 is about 167.2644167174.

The spelling of 4679621 in words is "four million, six hundred seventy-nine thousand, six hundred twenty-one".