3869907 has 4 divisors (see below), whose sum is σ = 5159880. Its totient is φ = 2579936.

The previous prime is 3869881. The next prime is 3869917. The reversal of 3869907 is 7099683.

It is a happy number.

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 3869907 - 2¹¹ = 3867859 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3869917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644982 + ... + 644987.

It is an arithmetic number, because the mean of its divisors is an integer number (1289970).

Almost surely, 2^3869907 is an apocalyptic number.

3869907 is a deficient number, since it is larger than the sum of its proper divisors (1289973).

3869907 is a wasteful number, since it uses less digits than its factorization.

3869907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289972.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3869907 is about 1967.2079198702. The cubic root of 3869907 is about 157.0001893246. Note that the first 3 decimals are identical.

The spelling of 3869907 in words is "three million, eight hundred sixty-nine thousand, nine hundred seven".