4619978 has 16 divisors (see below), whose sum is σ = 7593696. Its totient is φ = 2090640.

The previous prime is 4619969. The next prime is 4619981. The reversal of 4619978 is 8799164.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7925 + ... + 8487.

It is an arithmetic number, because the mean of its divisors is an integer number (474606).

Almost surely, 2^4619978 is an apocalyptic number.

4619978 is a deficient number, since it is larger than the sum of its proper divisors (2973718).

4619978 is a wasteful number, since it uses less digits than its factorization.

4619978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949.

The product of its digits is 108864, while the sum is 44.

The square root of 4619978 is about 2149.4134083512. The cubic root of 4619978 is about 166.5507665327.

The spelling of 4619978 in words is "four million, six hundred nineteen thousand, nine hundred seventy-eight".