3107987 has 4 divisors (see below), whose sum is σ = 3121560. Its totient is φ = 3094416.

The previous prime is 3107983. The next prime is 3107989. The reversal of 3107987 is 7897013.

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

It is a cyclic number.

It is not a de Polignac number, because 3107987 - 2² = 3107983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3107981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6437 + ... + 6902.

It is an arithmetic number, because the mean of its divisors is an integer number (780390).

Almost surely, 2^3107987 is an apocalyptic number.

3107987 is a deficient number, since it is larger than the sum of its proper divisors (13573).

3107987 is a wasteful number, since it uses less digits than its factorization.

3107987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13572.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 3107987 is about 1762.9483826817. The cubic root of 3107987 is about 145.9350903056.

The spelling of 3107987 in words is "three million, one hundred seven thousand, nine hundred eighty-seven".