4789621 has 2 divisors, whose sum is σ = 4789622. Its totient is φ = 4789620.

The previous prime is 4789619. The next prime is 4789633. The reversal of 4789621 is 1269874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4778596 + 11025 = 2186^2 + 105^2 .

It is a cyclic number.

It is not a de Polignac number, because 4789621 - 2¹ = 4789619 is a prime.

Together with 4789619, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4789601) 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 as a sum of consecutive naturals, namely, 2394810 + 2394811.

It is an arithmetic number, because the mean of its divisors is an integer number (2394811).

Almost surely, 2^4789621 is an apocalyptic number.

It is an amenable number.

4789621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4789621 is an equidigital number, since it uses as much as digits as its factorization.

4789621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 4789621 is about 2188.5202763511. The cubic root of 4789621 is about 168.5648621606.

The spelling of 4789621 in words is "four million, seven hundred eighty-nine thousand, six hundred twenty-one".