3960686 has 4 divisors (see below), whose sum is σ = 5941032. Its totient is φ = 1980342.

The previous prime is 3960673. The next prime is 3960689. The reversal of 3960686 is 6860693.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3960689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990170 + ... + 990173.

It is an arithmetic number, because the mean of its divisors is an integer number (1485258).

Almost surely, 2^3960686 is an apocalyptic number.

3960686 is a deficient number, since it is larger than the sum of its proper divisors (1980346).

3960686 is a wasteful number, since it uses less digits than its factorization.

3960686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980345.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 3960686 is about 1990.1472307344. The cubic root of 3960686 is about 158.2183329908.

The spelling of 3960686 in words is "three million, nine hundred sixty thousand, six hundred eighty-six".