4721523 has 8 divisors (see below), whose sum is σ = 6307536. Its totient is φ = 3141600.

The previous prime is 4721513. The next prime is 4721527. The reversal of 4721523 is 3251274.

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

It is not a de Polignac number, because 4721523 - 2⁵ = 4721491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4721493 and 4721502.

It is not an unprimeable number, because it can be changed into a prime (4721527) 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, 793 + ... + 3173.

It is an arithmetic number, because the mean of its divisors is an integer number (788442).

Almost surely, 2^4721523 is an apocalyptic number.

4721523 is a deficient number, since it is larger than the sum of its proper divisors (1586013).

4721523 is a wasteful number, since it uses less digits than its factorization.

4721523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045.

The product of its digits is 1680, while the sum is 24.

The square root of 4721523 is about 2172.9065787557. The cubic root of 4721523 is about 167.7621705615.

Adding to 4721523 its reverse (3251274), we get a palindrome (7972797).

The spelling of 4721523 in words is "four million, seven hundred twenty-one thousand, five hundred twenty-three".