4738021 has 2 divisors, whose sum is σ = 4738022. Its totient is φ = 4738020.

The previous prime is 4738007. The next prime is 4738031. The reversal of 4738021 is 1208374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4730625 + 7396 = 2175^2 + 86^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4738021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4738031) 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, 2369010 + 2369011.

It is an arithmetic number, because the mean of its divisors is an integer number (2369011).

Almost surely, 2^4738021 is an apocalyptic number.

It is an amenable number.

4738021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4738021 is an equidigital number, since it uses as much as digits as its factorization.

4738021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 4738021 is about 2176.6995658565. The cubic root of 4738021 is about 167.9573422496.

The spelling of 4738021 in words is "four million, seven hundred thirty-eight thousand, twenty-one".