12065978 has 8 divisors (see below), whose sum is σ = 18142068. Its totient is φ = 6018624.

The previous prime is 12065947. The next prime is 12065987. The reversal of 12065978 is 87956021.

12065978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11812969 + 253009 = 3437^2 + 503^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6101 + ... + 7832.

Almost surely, 2^12065978 is an apocalyptic number.

12065978 is a deficient number, since it is larger than the sum of its proper divisors (6076090).

12065978 is a wasteful number, since it uses less digits than its factorization.

12065978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14368.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 12065978 is about 3473.6116651117. The cubic root of 12065978 is about 229.3616705076.

The spelling of 12065978 in words is "twelve million, sixty-five thousand, nine hundred seventy-eight".