4278999 has 8 divisors (see below), whose sum is σ = 5715072. Its totient is φ = 2847800.

The previous prime is 4278991. The next prime is 4279007. The reversal of 4278999 is 9998724.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4278991) and next prime (4279007).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4278999 - 2³ = 4278991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2224 + ... + 3674.

It is an arithmetic number, because the mean of its divisors is an integer number (714384).

Almost surely, 2^4278999 is an apocalyptic number.

4278999 is a deficient number, since it is larger than the sum of its proper divisors (1436073).

4278999 is a wasteful number, since it uses less digits than its factorization.

4278999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437.

The product of its digits is 326592, while the sum is 48.

The square root of 4278999 is about 2068.5741466044. The cubic root of 4278999 is about 162.3481690299.

The spelling of 4278999 in words is "four million, two hundred seventy-eight thousand, nine hundred ninety-nine".