4721273 has 4 divisors (see below), whose sum is σ = 4836468. Its totient is φ = 4606080.

The previous prime is 4721263. The next prime is 4721303. The reversal of 4721273 is 3721274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3721274 = 2 ⋅1860637.

It can be written as a sum of positive squares in 2 ways, for example, as 1669264 + 3052009 = 1292^2 + 1747^2 .

It is a cyclic number.

It is not a de Polignac number, because 4721273 - 2¹⁶ = 4655737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4721243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57536 + ... + 57617.

It is an arithmetic number, because the mean of its divisors is an integer number (1209117).

Almost surely, 2^4721273 is an apocalyptic number.

It is an amenable number.

4721273 is a deficient number, since it is larger than the sum of its proper divisors (115195).

4721273 is a wasteful number, since it uses less digits than its factorization.

4721273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115194.

The product of its digits is 2352, while the sum is 26.

The square root of 4721273 is about 2172.8490513609. The cubic root of 4721273 is about 167.7592095619.

Subtracting from 4721273 its reverse (3721274), we obtain a palindrome (999999).

It can be divided in two parts, 4721 and 273, that added together give a palindrome (4994).

The spelling of 4721273 in words is "four million, seven hundred twenty-one thousand, two hundred seventy-three".