4678978 has 16 divisors (see below), whose sum is σ = 7823520. Its totient is φ = 2085696.

The previous prime is 4678967. The next prime is 4678979. The reversal of 4678978 is 8798764.

It is not an unprimeable number, because it can be changed into a prime (4678979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2976 + ... + 4267.

It is an arithmetic number, because the mean of its divisors is an integer number (488970).

Almost surely, 2^4678978 is an apocalyptic number.

4678978 is a deficient number, since it is larger than the sum of its proper divisors (3144542).

4678978 is a wasteful number, since it uses less digits than its factorization.

4678978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7281.

The product of its digits is 677376, while the sum is 49.

The square root of 4678978 is about 2163.0945425478. The cubic root of 4678978 is about 167.2567554171.

The spelling of 4678978 in words is "four million, six hundred seventy-eight thousand, nine hundred seventy-eight".