4391479 has 4 divisors (see below), whose sum is σ = 4396680. Its totient is φ = 4386280.

The previous prime is 4391449. The next prime is 4391483. The reversal of 4391479 is 9741934.

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 4391479 - 2¹⁹ = 3867191 is a prime.

It is a d-powerful number, because it can be written as 4³ + 3⁹ + 9³ + 1 + 4¹¹ + 7⁶ + 9⁵ .

It is a Duffinian number.

4391479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4391449) 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, 1009 + ... + 3130.

It is an arithmetic number, because the mean of its divisors is an integer number (1099170).

Almost surely, 2^4391479 is an apocalyptic number.

4391479 is a deficient number, since it is larger than the sum of its proper divisors (5201).

4391479 is a wasteful number, since it uses less digits than its factorization.

4391479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200.

The product of its digits is 27216, while the sum is 37.

The square root of 4391479 is about 2095.5855983472. The cubic root of 4391479 is about 163.7584064212.

The spelling of 4391479 in words is "four million, three hundred ninety-one thousand, four hundred seventy-nine".