4723978 has 8 divisors (see below), whose sum is σ = 8098272. Its totient is φ = 2024556.

The previous prime is 4723949. The next prime is 4723981. The reversal of 4723978 is 8793274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4723978.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168700 + ... + 168727.

It is an arithmetic number, because the mean of its divisors is an integer number (1012284).

Almost surely, 2^4723978 is an apocalyptic number.

4723978 is a deficient number, since it is larger than the sum of its proper divisors (3374294).

4723978 is a wasteful number, since it uses less digits than its factorization.

4723978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337436.

The product of its digits is 84672, while the sum is 40.

The square root of 4723978 is about 2173.4714168813. The cubic root of 4723978 is about 167.7912420261.

It can be divided in two parts, 47 and 23978, that added together give a square (24025 = 155²).

The spelling of 4723978 in words is "four million, seven hundred twenty-three thousand, nine hundred seventy-eight".