3989178 has 12 divisors (see below), whose sum is σ = 8643258. Its totient is φ = 1329720.

The previous prime is 3989171. The next prime is 3989191. The reversal of 3989178 is 8719893.

It can be written as a sum of positive squares in only one way, i.e., 3337929 + 651249 = 1827^2 + 807^2 .

It is a super-2 number, since 2×3989178² = 31827082231368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3989171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110793 + ... + 110828.

Almost surely, 2^3989178 is an apocalyptic number.

3989178 is an abundant number, since it is smaller than the sum of its proper divisors (4654080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3989178 is a wasteful number, since it uses less digits than its factorization.

3989178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221629 (or 221626 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 3989178 is about 1997.2926675878. The cubic root of 3989178 is about 158.5968187804.

The spelling of 3989178 in words is "three million, nine hundred eighty-nine thousand, one hundred seventy-eight".