3845687 has 8 divisors (see below), whose sum is σ = 3926016. Its totient is φ = 3766392.

The previous prime is 3845663. The next prime is 3845693. The reversal of 3845687 is 7865483.

It is a happy number.

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 3845687 - 2¹⁰ = 3844663 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3⁵ + 8 + 4⁸ + 5⁵ + 6⁸ + 8⁷ + 7 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3845287) 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, 13448 + ... + 13730.

It is an arithmetic number, because the mean of its divisors is an integer number (490752).

Almost surely, 2^3845687 is an apocalyptic number.

3845687 is a deficient number, since it is larger than the sum of its proper divisors (80329).

3845687 is a wasteful number, since it uses less digits than its factorization.

3845687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its digits is 161280, while the sum is 41.

The square root of 3845687 is about 1961.0423248875. The cubic root of 3845687 is about 156.6719725581.

The spelling of 3845687 in words is "three million, eight hundred forty-five thousand, six hundred eighty-seven".