4721393 has 12 divisors (see below), whose sum is σ = 5183460. Its totient is φ = 4300320.

The previous prime is 4721383. The next prime is 4721407. The reversal of 4721393 is 3931274.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 2598544 + 2122849 = 1612^2 + 1457^2 .

It is not a de Polignac number, because 4721393 - 2⁴ = 4721377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4721303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152288 + ... + 152318.

It is an arithmetic number, because the mean of its divisors is an integer number (431955).

Almost surely, 2^4721393 is an apocalyptic number.

It is an amenable number.

4721393 is a deficient number, since it is larger than the sum of its proper divisors (462067).

4721393 is an frugal number, since it uses more digits than its factorization.

4721393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 48 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 4721393 is about 2172.8766647005. The cubic root of 4721393 is about 167.7606308547.

The spelling of 4721393 in words is "four million, seven hundred twenty-one thousand, three hundred ninety-three".