4721245 has 8 divisors (see below), whose sum is σ = 5722200. Its totient is φ = 3739200.

The previous prime is 4721243. The next prime is 4721261. The reversal of 4721245 is 5421274.

It can be written as a sum of positive squares in 4 ways, for example, as 2524921 + 2196324 = 1589^2 + 1482^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4721245 - 2¹ = 4721243 is a prime.

It is a d-powerful number, because it can be written as 4⁴ + 7³ + 2¹¹ + 1 + 2¹⁹ + 4¹¹ + 5 .

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 4170 + ... + 5179.

It is an arithmetic number, because the mean of its divisors is an integer number (715275).

Almost surely, 2^4721245 is an apocalyptic number.

It is an amenable number.

4721245 is a deficient number, since it is larger than the sum of its proper divisors (1000955).

4721245 is a wasteful number, since it uses less digits than its factorization.

4721245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9455.

The product of its digits is 2240, while the sum is 25.

The square root of 4721245 is about 2172.8426081978. The cubic root of 4721245 is about 167.7588779234.

The spelling of 4721245 in words is "four million, seven hundred twenty-one thousand, two hundred forty-five".