4004479 has 4 divisors (see below), whose sum is σ = 4008600. Its totient is φ = 4000360.

The previous prime is 4004453. The next prime is 4004489. The reversal of 4004479 is 9744004.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4004479 - 2¹¹ = 4002431 is a prime.

It is a super-2 number, since 2×4004479² = 32071704122882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004449) 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, 297 + ... + 2845.

It is an arithmetic number, because the mean of its divisors is an integer number (1002150).

Almost surely, 2^4004479 is an apocalyptic number.

4004479 is a deficient number, since it is larger than the sum of its proper divisors (4121).

4004479 is a wasteful number, since it uses less digits than its factorization.

4004479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 4004479 is about 2001.1194367154. The cubic root of 4004479 is about 158.7993328399.

The spelling of 4004479 in words is "four million, four thousand, four hundred seventy-nine".