9049978 has 16 divisors (see below), whose sum is σ = 15934464. Its totient is φ = 3773520.

The previous prime is 9049973. The next prime is 9049987. The reversal of 9049978 is 8799409.

9049978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9049973) 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, 8218 + ... + 9253.

It is an arithmetic number, because the mean of its divisors is an integer number (995904).

Almost surely, 2^9049978 is an apocalyptic number.

9049978 is a deficient number, since it is larger than the sum of its proper divisors (6884486).

9049978 is a wasteful number, since it uses less digits than its factorization.

9049978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17517.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 9049978 is about 3008.3181347723. The cubic root of 9049978 is about 208.3927030084.

The spelling of 9049978 in words is "nine million, forty-nine thousand, nine hundred seventy-eight".