4278079 has 4 divisors (see below), whose sum is σ = 4607176. Its totient is φ = 3948984.

The previous prime is 4278077. The next prime is 4278089. The reversal of 4278079 is 9708724.

It is a happy number.

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

It is not a de Polignac number, because 4278079 - 2¹ = 4278077 is a prime.

It is a Duffinian number.

4278079 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278073) 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, 164529 + ... + 164554.

It is an arithmetic number, because the mean of its divisors is an integer number (1151794).

Almost surely, 2^4278079 is an apocalyptic number.

4278079 is a deficient number, since it is larger than the sum of its proper divisors (329097).

4278079 is a wasteful number, since it uses less digits than its factorization.

4278079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329096.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 4278079 is about 2068.3517592518. The cubic root of 4278079 is about 162.3365330514.

The spelling of 4278079 in words is "four million, two hundred seventy-eight thousand, seventy-nine".