4507978 has 16 divisors (see below), whose sum is σ = 7197120. Its totient is φ = 2111616.

The previous prime is 4507967. The next prime is 4507981. The reversal of 4507978 is 8797054.

It is a self number, because there is not a number n which added to its sum of digits gives 4507978.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3075 + ... + 4297.

It is an arithmetic number, because the mean of its divisors is an integer number (449820).

Almost surely, 2^4507978 is an apocalyptic number.

4507978 is a deficient number, since it is larger than the sum of its proper divisors (2689142).

4507978 is a wasteful number, since it uses less digits than its factorization.

4507978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 4507978 is about 2123.1999434815. The cubic root of 4507978 is about 165.1938706792.

The spelling of 4507978 in words is "four million, five hundred seven thousand, nine hundred seventy-eight".