3867789 has 16 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 2407680.

The previous prime is 3867779. The next prime is 3867797. The reversal of 3867789 is 9877683.

It is not a de Polignac number, because 3867789 - 2⁵ = 3867757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9022 + ... + 9440.

It is an arithmetic number, because the mean of its divisors is an integer number (343980).

Almost surely, 2^3867789 is an apocalyptic number.

It is an amenable number.

3867789 is a deficient number, since it is larger than the sum of its proper divisors (1635891).

3867789 is a wasteful number, since it uses less digits than its factorization.

3867789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620.

The product of its digits is 508032, while the sum is 48.

The square root of 3867789 is about 1966.6695197719. The cubic root of 3867789 is about 156.9715420312.

It can be divided in two parts, 3867 and 789, that added together give a triangular number (4656 = T₉₆).

The spelling of 3867789 in words is "three million, eight hundred sixty-seven thousand, seven hundred eighty-nine".