3986390178 has 12 divisors (see below), whose sum is σ = 8637178758. Its totient is φ = 1328796720.

The previous prime is 3986390137. The next prime is 3986390179. The reversal of 3986390178 is 8710936893.

3986390178 is a `hidden beast` number, since 3 + 9 + 86 + 390 + 178 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3069935649 + 916454529 = 55407^2 + 30273^2 .

It is not an unprimeable number, because it can be changed into a prime (3986390179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110733043 + ... + 110733078.

Almost surely, 2^3986390178 is an apocalyptic number.

3986390178 is an abundant number, since it is smaller than the sum of its proper divisors (4650788580).

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

3986390178 is a wasteful number, since it uses less digits than its factorization.

3986390178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221466129 (or 221466126 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 3986390178 is about 63137.8664352859. The cubic root of 3986390178 is about 1585.5986524119.

The spelling of 3986390178 in words is "three billion, nine hundred eighty-six million, three hundred ninety thousand, one hundred seventy-eight".