4869978 has 16 divisors (see below), whose sum is σ = 9905760. Its totient is φ = 1595696.

The previous prime is 4869959. The next prime is 4869979. The reversal of 4869978 is 8799684.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4869978.

It is not an unprimeable number, because it can be changed into a prime (4869979) 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, 6525 + ... + 7232.

It is an arithmetic number, because the mean of its divisors is an integer number (619110).

Almost surely, 2^4869978 is an apocalyptic number.

4869978 is an abundant number, since it is smaller than the sum of its proper divisors (5035782).

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

4869978 is a wasteful number, since it uses less digits than its factorization.

4869978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13821.

The product of its digits is 870912, while the sum is 51.

The square root of 4869978 is about 2206.8026644900. The cubic root of 4869978 is about 169.5023276540.

The spelling of 4869978 in words is "four million, eight hundred sixty-nine thousand, nine hundred seventy-eight".