4743421 has 4 divisors (see below), whose sum is σ = 4821244. Its totient is φ = 4665600.

The previous prime is 4743383. The next prime is 4743461. The reversal of 4743421 is 1243474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 4120900 = 789^2 + 2030^2 .

It is a 6-Lehmer number, since φ(4743421) divides (4743421-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 4743421 - 2⁹ = 4742909 is a prime.

It is a Duffinian number.

4743421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4743461) 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 in 3 ways as a sum of consecutive naturals, for example, 38820 + ... + 38941.

It is an arithmetic number, because the mean of its divisors is an integer number (1205311).

Almost surely, 2^4743421 is an apocalyptic number.

It is an amenable number.

4743421 is a deficient number, since it is larger than the sum of its proper divisors (77823).

4743421 is an equidigital number, since it uses as much as digits as its factorization.

4743421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77822.

The product of its digits is 2688, while the sum is 25.

The square root of 4743421 is about 2177.9396226709. The cubic root of 4743421 is about 168.0211259336.

Adding to 4743421 its reverse (1243474), we get a palindrome (5986895).

The spelling of 4743421 in words is "four million, seven hundred forty-three thousand, four hundred twenty-one".