3980687 has 2 divisors, whose sum is σ = 3980688. Its totient is φ = 3980686.

The previous prime is 3980663. The next prime is 3980689. The reversal of 3980687 is 7860893.

It is a strong prime.

It is an emirp because it is prime and its reverse (7860893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3980687 - 2¹⁰ = 3979663 is a prime.

Together with 3980689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3980689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1990343 + 1990344.

It is an arithmetic number, because the mean of its divisors is an integer number (1990344).

Almost surely, 2^3980687 is an apocalyptic number.

3980687 is a deficient number, since it is larger than the sum of its proper divisors (1).

3980687 is an equidigital number, since it uses as much as digits as its factorization.

3980687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 3980687 is about 1995.1659078884. The cubic root of 3980687 is about 158.4842139473.

It can be divided in two parts, 39806 and 87, that added together give a palindrome (39893).

The spelling of 3980687 in words is "three million, nine hundred eighty thousand, six hundred eighty-seven".