4521673 has 4 divisors (see below), whose sum is σ = 4869508. Its totient is φ = 4173840.

The previous prime is 4521653. The next prime is 4521679. The reversal of 4521673 is 3761254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2913849 + 1607824 = 1707^2 + 1268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4521673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4521679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173898 + ... + 173923.

It is an arithmetic number, because the mean of its divisors is an integer number (1217377).

Almost surely, 2^4521673 is an apocalyptic number.

It is an amenable number.

4521673 is a deficient number, since it is larger than the sum of its proper divisors (347835).

4521673 is a wasteful number, since it uses less digits than its factorization.

4521673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347834.

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

The square root of 4521673 is about 2126.4225826491. The cubic root of 4521673 is about 165.3609849945.

The spelling of 4521673 in words is "four million, five hundred twenty-one thousand, six hundred seventy-three".