3973147 has 8 divisors (see below), whose sum is σ = 4236800. Its totient is φ = 3714984.

The previous prime is 3973139. The next prime is 3973153. The reversal of 3973147 is 7413793.

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

It is a cyclic number.

It is not a de Polignac number, because 3973147 - 2³ = 3973139 is a prime.

It is a Duffinian number.

3973147 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3973117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178 + ... + 2824.

It is an arithmetic number, because the mean of its divisors is an integer number (529600).

Almost surely, 2^3973147 is an apocalyptic number.

3973147 is a deficient number, since it is larger than the sum of its proper divisors (263653).

3973147 is a wasteful number, since it uses less digits than its factorization.

3973147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745.

The product of its digits is 15876, while the sum is 34.

The square root of 3973147 is about 1993.2754450903. The cubic root of 3973147 is about 158.3840866534.

The spelling of 3973147 in words is "three million, nine hundred seventy-three thousand, one hundred forty-seven".