3867729 has 8 divisors (see below), whose sum is σ = 5205600. Its totient is φ = 2554176.

The previous prime is 3867713. The next prime is 3867733. The reversal of 3867729 is 9277683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3867729 - 2⁴ = 3867713 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 5704 + ... + 6345.

It is an arithmetic number, because the mean of its divisors is an integer number (650700).

Almost surely, 2^3867729 is an apocalyptic number.

It is an amenable number.

3867729 is a deficient number, since it is larger than the sum of its proper divisors (1337871).

3867729 is a wasteful number, since it uses less digits than its factorization.

3867729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12159.

The product of its digits is 127008, while the sum is 42.

The square root of 3867729 is about 1966.6542654976. The cubic root of 3867729 is about 156.9707303408.

The spelling of 3867729 in words is "three million, eight hundred sixty-seven thousand, seven hundred twenty-nine".