4719978 has 16 divisors (see below), whose sum is σ = 10488960. Its totient is φ = 1573308.

The previous prime is 4719977. The next prime is 4719989. The reversal of 4719978 is 8799174.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4719973) 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, 43650 + ... + 43757.

It is an arithmetic number, because the mean of its divisors is an integer number (655560).

Almost surely, 2^4719978 is an apocalyptic number.

4719978 is an abundant number, since it is smaller than the sum of its proper divisors (5768982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4719978 is a wasteful number, since it uses less digits than its factorization.

4719978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87418 (or 87412 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 4719978 is about 2172.5510350737. The cubic root of 4719978 is about 167.7438699107.

The spelling of 4719978 in words is "four million, seven hundred nineteen thousand, nine hundred seventy-eight".