4579921 has 8 divisors (see below), whose sum is σ = 4826304. Its totient is φ = 4337520.

The previous prime is 4579903. The next prime is 4579933. The reversal of 4579921 is 1299754.

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 4579921 - 2¹⁹ = 4055633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4579901) 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, 1531 + ... + 3391.

It is an arithmetic number, because the mean of its divisors is an integer number (603288).

Almost surely, 2^4579921 is an apocalyptic number.

It is an amenable number.

4579921 is a deficient number, since it is larger than the sum of its proper divisors (246383).

4579921 is a wasteful number, since it uses less digits than its factorization.

4579921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991.

The product of its digits is 22680, while the sum is 37.

The square root of 4579921 is about 2140.0749986858. The cubic root of 4579921 is about 166.0680153855.

The spelling of 4579921 in words is "four million, five hundred seventy-nine thousand, nine hundred twenty-one".