4279978 has 32 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 1883376.

The previous prime is 4279973. The next prime is 4279981. The reversal of 4279978 is 8799724.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (4279973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51525 + ... + 51607.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

Almost surely, 2^4279978 is an apocalyptic number.

4279978 is a deficient number, since it is larger than the sum of its proper divisors (2977622).

4279978 is a wasteful number, since it uses less digits than its factorization.

4279978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186.

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

The square root of 4279978 is about 2068.8107695002. The cubic root of 4279978 is about 162.3605493972.

The spelling of 4279978 in words is "four million, two hundred seventy-nine thousand, nine hundred seventy-eight".