4521247 has 4 divisors (see below), whose sum is σ = 4527576. Its totient is φ = 4514920.

The previous prime is 4521241. The next prime is 4521299. The reversal of 4521247 is 7421254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7421254 = 2 ⋅3710627.

It is a cyclic number.

It is not a de Polignac number, because 4521247 - 2¹⁵ = 4488479 is a prime.

It is a d-powerful number, because it can be written as 4³ + 5⁷ + 2⁵ + 1 + 2¹⁷ + 4¹¹ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521241) 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, 1933 + ... + 3574.

It is an arithmetic number, because the mean of its divisors is an integer number (1131894).

Almost surely, 2^4521247 is an apocalyptic number.

4521247 is a deficient number, since it is larger than the sum of its proper divisors (6329).

4521247 is an equidigital number, since it uses as much as digits as its factorization.

4521247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6328.

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

The square root of 4521247 is about 2126.3224120533. The cubic root of 4521247 is about 165.3557917845.

The spelling of 4521247 in words is "four million, five hundred twenty-one thousand, two hundred forty-seven".