3973967 has 4 divisors (see below), whose sum is σ = 4039176. Its totient is φ = 3908760.

The previous prime is 3973943. The next prime is 3973973. The reversal of 3973967 is 7693793.

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 3973967 - 2¹² = 3969871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3973927) 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, 32513 + ... + 32634.

It is an arithmetic number, because the mean of its divisors is an integer number (1009794).

Almost surely, 2^3973967 is an apocalyptic number.

3973967 is a deficient number, since it is larger than the sum of its proper divisors (65209).

3973967 is an equidigital number, since it uses as much as digits as its factorization.

3973967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65208.

The product of its digits is 214326, while the sum is 44.

The square root of 3973967 is about 1993.4811260707. The cubic root of 3973967 is about 158.3949819645.

The spelling of 3973967 in words is "three million, nine hundred seventy-three thousand, nine hundred sixty-seven".