9478279 has 4 divisors (see below), whose sum is σ = 9484776. Its totient is φ = 9471784.

The previous prime is 9478267. The next prime is 9478297. The reversal of 9478279 is 9728749.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9728749 = 139 ⋅69991.

It is a cyclic number.

It is not a de Polignac number, because 9478279 - 2¹⁵ = 9445511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9478879) 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, 72 + ... + 4354.

It is an arithmetic number, because the mean of its divisors is an integer number (2371194).

Almost surely, 2^9478279 is an apocalyptic number.

9478279 is a deficient number, since it is larger than the sum of its proper divisors (6497).

9478279 is a wasteful number, since it uses less digits than its factorization.

9478279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6496.

The product of its digits is 254016, while the sum is 46.

The square root of 9478279 is about 3078.6813735754. The cubic root of 9478279 is about 211.6296414320.

The spelling of 9478279 in words is "nine million, four hundred seventy-eight thousand, two hundred seventy-nine".