3929867 has 4 divisors (see below), whose sum is σ = 3955056. Its totient is φ = 3904680.

The previous prime is 3929857. The next prime is 3929879. The reversal of 3929867 is 7689293.

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 3929867 - 2¹⁰ = 3928843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3929857) 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, 12359 + ... + 12672.

It is an arithmetic number, because the mean of its divisors is an integer number (988764).

Almost surely, 2^3929867 is an apocalyptic number.

3929867 is a deficient number, since it is larger than the sum of its proper divisors (25189).

3929867 is a wasteful number, since it uses less digits than its factorization.

3929867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25188.

The product of its digits is 163296, while the sum is 44.

The square root of 3929867 is about 1982.3892150635. The cubic root of 3929867 is about 157.8068863212.

The spelling of 3929867 in words is "three million, nine hundred twenty-nine thousand, eight hundred sixty-seven".