11954978 has 16 divisors (see below), whose sum is σ = 21700224. Its totient is φ = 4822080.

The previous prime is 11954977. The next prime is 11955007. The reversal of 11954978 is 87945911.

11954978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11954977) 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, 24878 + ... + 25353.

It is an arithmetic number, because the mean of its divisors is an integer number (1356264).

Almost surely, 2^11954978 is an apocalyptic number.

11954978 is a deficient number, since it is larger than the sum of its proper divisors (9745246).

11954978 is a wasteful number, since it uses less digits than its factorization.

11954978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50257.

The product of its digits is 90720, while the sum is 44.

The square root of 11954978 is about 3457.5971425254. The cubic root of 11954978 is about 228.6561712192.

The spelling of 11954978 in words is "eleven million, nine hundred fifty-four thousand, nine hundred seventy-eight".