3870687 has 8 divisors (see below), whose sum is σ = 5286960. Its totient is φ = 2517440.

The previous prime is 3870667. The next prime is 3870689. The reversal of 3870687 is 7860783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3870687 - 2¹⁸ = 3608543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15612 + ... + 15857.

It is an arithmetic number, because the mean of its divisors is an integer number (660870).

Almost surely, 2^3870687 is an apocalyptic number.

3870687 is a deficient number, since it is larger than the sum of its proper divisors (1416273).

3870687 is a wasteful number, since it uses less digits than its factorization.

3870687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31513.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 3870687 is about 1967.4061604051. The cubic root of 3870687 is about 157.0107366858.

The spelling of 3870687 in words is "three million, eight hundred seventy thousand, six hundred eighty-seven".