4748521 has 2 divisors, whose sum is σ = 4748522. Its totient is φ = 4748520.

The previous prime is 4748519. The next prime is 4748531. The reversal of 4748521 is 1258474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4579600 + 168921 = 2140^2 + 411^2 .

It is a cyclic number.

It is not a de Polignac number, because 4748521 - 2¹ = 4748519 is a prime.

Together with 4748519, it forms a pair of twin primes.

4748521 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4748531) 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, 2374260 + 2374261.

It is an arithmetic number, because the mean of its divisors is an integer number (2374261).

Almost surely, 2^4748521 is an apocalyptic number.

It is an amenable number.

4748521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4748521 is an equidigital number, since it uses as much as digits as its factorization.

4748521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 31.

The square root of 4748521 is about 2179.1101394835. The cubic root of 4748521 is about 168.0813216459.

The spelling of 4748521 in words is "four million, seven hundred forty-eight thousand, five hundred twenty-one".