4721493 has 12 divisors (see below), whose sum is σ = 7323360. Its totient is φ = 2697912.

The previous prime is 4721491. The next prime is 4721513. The reversal of 4721493 is 3941274.

It is a happy number.

It is not a de Polignac number, because 4721493 - 2¹ = 4721491 is a prime.

It is a super-2 number, since 2×4721493² = 44584992298098, which contains 22 as substring.

4721493 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4721493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4721491) 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, 15913 + ... + 16206.

It is an arithmetic number, because the mean of its divisors is an integer number (610280).

Almost surely, 2^4721493 is an apocalyptic number.

It is an amenable number.

4721493 is a deficient number, since it is larger than the sum of its proper divisors (2601867).

4721493 is a wasteful number, since it uses less digits than its factorization.

4721493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32136 (or 32129 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 4721493 is about 2172.8996755488. The cubic root of 4721493 is about 167.7618152470.

The spelling of 4721493 in words is "four million, seven hundred twenty-one thousand, four hundred ninety-three".