3867387 has 4 divisors (see below), whose sum is σ = 5156520. Its totient is φ = 2578256.

The previous prime is 3867371. The next prime is 3867389. The reversal of 3867387 is 7837683.

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 3867387 - 2⁴ = 3867371 is a prime.

It is a D-number.

3867387 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3867389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644562 + ... + 644567.

It is an arithmetic number, because the mean of its divisors is an integer number (1289130).

Almost surely, 2^3867387 is an apocalyptic number.

3867387 is a deficient number, since it is larger than the sum of its proper divisors (1289133).

3867387 is a wasteful number, since it uses less digits than its factorization.

3867387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289132.

The product of its digits is 169344, while the sum is 42.

The square root of 3867387 is about 1966.5673138746. The cubic root of 3867387 is about 156.9661035454.

The spelling of 3867387 in words is "three million, eight hundred sixty-seven thousand, three hundred eighty-seven".