3973737 has 4 divisors (see below), whose sum is σ = 5298320. Its totient is φ = 2649156.

The previous prime is 3973729. The next prime is 3973741. The reversal of 3973737 is 7373793.

3973737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3973737 - 2³ = 3973729 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3973695 and 3973704.

It is not an unprimeable number, because it can be changed into a prime (3973727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662287 + ... + 662292.

It is an arithmetic number, because the mean of its divisors is an integer number (1324580).

Almost surely, 2^3973737 is an apocalyptic number.

It is an amenable number.

3973737 is a deficient number, since it is larger than the sum of its proper divisors (1324583).

3973737 is a wasteful number, since it uses less digits than its factorization.

3973737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324582.

The product of its digits is 83349, while the sum is 39.

The square root of 3973737 is about 1993.4234372055. The cubic root of 3973737 is about 158.3919261138.

The spelling of 3973737 in words is "three million, nine hundred seventy-three thousand, seven hundred thirty-seven".