3986698 has 4 divisors (see below), whose sum is σ = 5980050. Its totient is φ = 1993348.

The previous prime is 3986677. The next prime is 3986699. The reversal of 3986698 is 8966893.

3986698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8966893 = 13 ⋅689761.

It can be written as a sum of positive squares in only one way, i.e., 2634129 + 1352569 = 1623^2 + 1163^2 .

It is not an unprimeable number, because it can be changed into a prime (3986699) 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 as a sum of consecutive naturals, namely, 996673 + ... + 996676.

Almost surely, 2^3986698 is an apocalyptic number.

3986698 is a deficient number, since it is larger than the sum of its proper divisors (1993352).

3986698 is a wasteful number, since it uses less digits than its factorization.

3986698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993351.

The product of its digits is 559872, while the sum is 49.

The square root of 3986698 is about 1996.6717306558. The cubic root of 3986698 is about 158.5639463736.

The spelling of 3986698 in words is "three million, nine hundred eighty-six thousand, six hundred ninety-eight".