4673521 has 8 divisors (see below), whose sum is σ = 4967784. Its totient is φ = 4381440.

The previous prime is 4673519. The next prime is 4673527. The reversal of 4673521 is 1253764.

It can be written as a sum of positive squares in 4 ways, for example, as 7921 + 4665600 = 89^2 + 2160^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4673521 - 2¹ = 4673519 is a prime.

It is a Duffinian number.

4673521 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4673521.

It is not an unprimeable number, because it can be changed into a prime (4673527) 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, 6831 + ... + 7483.

It is an arithmetic number, because the mean of its divisors is an integer number (620973).

Almost surely, 2^4673521 is an apocalyptic number.

It is an amenable number.

4673521 is a deficient number, since it is larger than the sum of its proper divisors (294263).

4673521 is a wasteful number, since it uses less digits than its factorization.

4673521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091.

The product of its digits is 5040, while the sum is 28.

The square root of 4673521 is about 2161.8327872433. The cubic root of 4673521 is about 167.1917073678.

The spelling of 4673521 in words is "four million, six hundred seventy-three thousand, five hundred twenty-one".