3685867 has 4 divisors (see below), whose sum is σ = 3879880. Its totient is φ = 3491856.

The previous prime is 3685861. The next prime is 3685879. The reversal of 3685867 is 7685863.

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 3685867 - 2⁷ = 3685739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3685861) 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, 96978 + ... + 97015.

It is an arithmetic number, because the mean of its divisors is an integer number (969970).

Almost surely, 2^3685867 is an apocalyptic number.

3685867 is a deficient number, since it is larger than the sum of its proper divisors (194013).

3685867 is a wasteful number, since it uses less digits than its factorization.

3685867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194012.

The product of its digits is 241920, while the sum is 43.

The square root of 3685867 is about 1919.8611928991. The cubic root of 3685867 is about 154.4708560704.

The spelling of 3685867 in words is "three million, six hundred eighty-five thousand, eight hundred sixty-seven".