3986634 has 32 divisors (see below), whose sum is σ = 8303616. Its totient is φ = 1275120.

The previous prime is 3986623. The next prime is 3986641. The reversal of 3986634 is 4366893.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 3986592 and 3986601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18789 + ... + 18999.

It is an arithmetic number, because the mean of its divisors is an integer number (259488).

Almost surely, 2^3986634 is an apocalyptic number.

3986634 is an abundant number, since it is smaller than the sum of its proper divisors (4316982).

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

3986634 is a wasteful number, since it uses less digits than its factorization.

3986634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330.

The product of its digits is 93312, while the sum is 39.

The square root of 3986634 is about 1996.6557039209. The cubic root of 3986634 is about 158.5630978730.

The spelling of 3986634 in words is "three million, nine hundred eighty-six thousand, six hundred thirty-four".