4278979 has 4 divisors (see below), whose sum is σ = 4426560. Its totient is φ = 4131400.

The previous prime is 4278959. The next prime is 4278991. The reversal of 4278979 is 9798724.

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 4278979 - 2⁵ = 4278947 is a prime.

It is a super-2 number, since 2×4278979² = 36619322564882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4278949) 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, 73747 + ... + 73804.

It is an arithmetic number, because the mean of its divisors is an integer number (1106640).

Almost surely, 2^4278979 is an apocalyptic number.

4278979 is a deficient number, since it is larger than the sum of its proper divisors (147581).

4278979 is a wasteful number, since it uses less digits than its factorization.

4278979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147580.

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

The square root of 4278979 is about 2068.5693123509. The cubic root of 4278979 is about 162.3479160916.

The spelling of 4278979 in words is "four million, two hundred seventy-eight thousand, nine hundred seventy-nine".