3938667 has 4 divisors (see below), whose sum is σ = 5251560. Its totient is φ = 2625776.

The previous prime is 3938657. The next prime is 3938699. The reversal of 3938667 is 7668393.

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 3938667 - 2⁶ = 3938603 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3938657) 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, 656442 + ... + 656447.

It is an arithmetic number, because the mean of its divisors is an integer number (1312890).

Almost surely, 2^3938667 is an apocalyptic number.

3938667 is a deficient number, since it is larger than the sum of its proper divisors (1312893).

3938667 is a wasteful number, since it uses less digits than its factorization.

3938667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312892.

The product of its digits is 163296, while the sum is 42.

The square root of 3938667 is about 1984.6075178735. The cubic root of 3938667 is about 157.9245888061.

The spelling of 3938667 in words is "three million, nine hundred thirty-eight thousand, six hundred sixty-seven".