3990178 has 8 divisors (see below), whose sum is σ = 6245568. Its totient is φ = 1908324.

The previous prime is 3990169. The next prime is 3990179. The reversal of 3990178 is 8710993.

3990178 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (3990179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43326 + ... + 43417.

It is an arithmetic number, because the mean of its divisors is an integer number (780696).

Almost surely, 2^3990178 is an apocalyptic number.

3990178 is a deficient number, since it is larger than the sum of its proper divisors (2255390).

3990178 is a wasteful number, since it uses less digits than its factorization.

3990178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86768.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 3990178 is about 1997.5429907764. The cubic root of 3990178 is about 158.6100699287.

The spelling of 3990178 in words is "three million, nine hundred ninety thousand, one hundred seventy-eight".