3867995 has 4 divisors (see below), whose sum is σ = 4641600. Its totient is φ = 3094392.

The previous prime is 3867961. The next prime is 3868003. The reversal of 3867995 is 5997683.

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 3867995 - 2⁶ = 3867931 is a prime.

It is a super-2 number, since 2×3867995² = 29922770640050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386795 + ... + 386804.

It is an arithmetic number, because the mean of its divisors is an integer number (1160400).

Almost surely, 2^3867995 is an apocalyptic number.

3867995 is a deficient number, since it is larger than the sum of its proper divisors (773605).

3867995 is an equidigital number, since it uses as much as digits as its factorization.

3867995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773604.

The product of its digits is 408240, while the sum is 47.

The square root of 3867995 is about 1966.7218918800. The cubic root of 3867995 is about 156.9743287709.

The spelling of 3867995 in words is "three million, eight hundred sixty-seven thousand, nine hundred ninety-five".