3973906 has 8 divisors (see below), whose sum is σ = 6058764. Its totient is φ = 1954320.

The previous prime is 3973877. The next prime is 3973919. The reversal of 3973906 is 6093793.

3973906 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 2 ways, for example, as 2512225 + 1461681 = 1585^2 + 1209^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16165 + ... + 16408.

Almost surely, 2^3973906 is an apocalyptic number.

3973906 is a deficient number, since it is larger than the sum of its proper divisors (2084858).

3973906 is a wasteful number, since it uses less digits than its factorization.

3973906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32636.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 3973906 is about 1993.4658261430. The cubic root of 3973906 is about 158.3941715112.

The spelling of 3973906 in words is "three million, nine hundred seventy-three thousand, nine hundred six".