4478279 has 4 divisors (see below), whose sum is σ = 4822776. Its totient is φ = 4133784.

The previous prime is 4478269. The next prime is 4478317. The reversal of 4478279 is 9728744.

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

It is a cyclic number.

It is not a de Polignac number, because 4478279 - 2¹⁶ = 4412743 is a prime.

It is a d-powerful number, because it can be written as 4 + 4¹¹ + 7⁴ + 8⁵ + 2¹⁷ + 7⁶ + 9² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478249) 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, 172229 + ... + 172254.

It is an arithmetic number, because the mean of its divisors is an integer number (1205694).

Almost surely, 2^4478279 is an apocalyptic number.

4478279 is a deficient number, since it is larger than the sum of its proper divisors (344497).

4478279 is a wasteful number, since it uses less digits than its factorization.

4478279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344496.

The product of its digits is 112896, while the sum is 41.

The square root of 4478279 is about 2116.1944617639. The cubic root of 4478279 is about 164.8302999673.

The spelling of 4478279 in words is "four million, four hundred seventy-eight thousand, two hundred seventy-nine".