4524721 has 4 divisors (see below), whose sum is σ = 4721472. Its totient is φ = 4327972.

The previous prime is 4524713. The next prime is 4524731. The reversal of 4524721 is 1274254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4524721 - 2³ = 4524713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4524701) 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, 98341 + ... + 98386.

It is an arithmetic number, because the mean of its divisors is an integer number (1180368).

Almost surely, 2^4524721 is an apocalyptic number.

It is an amenable number.

4524721 is a deficient number, since it is larger than the sum of its proper divisors (196751).

4524721 is a wasteful number, since it uses less digits than its factorization.

4524721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196750.

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

The square root of 4524721 is about 2127.1391585884. The cubic root of 4524721 is about 165.3981325336.

Adding to 4524721 its reverse (1274254), we get a palindrome (5798975).

The spelling of 4524721 in words is "four million, five hundred twenty-four thousand, seven hundred twenty-one".