12085778 has 8 divisors (see below), whose sum is σ = 18153072. Its totient is φ = 6034756.

The previous prime is 12085763. The next prime is 12085781. The reversal of 12085778 is 87758021.

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, 2000 + ... + 5307.

It is an arithmetic number, because the mean of its divisors is an integer number (2269134).

Almost surely, 2^12085778 is an apocalyptic number.

12085778 is a deficient number, since it is larger than the sum of its proper divisors (6067294).

12085778 is an equidigital number, since it uses as much as digits as its factorization.

12085778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8136.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 12085778 is about 3476.4605563705. The cubic root of 12085778 is about 229.4870610685.

The spelling of 12085778 in words is "twelve million, eighty-five thousand, seven hundred seventy-eight".