3997713 has 4 divisors (see below), whose sum is σ = 5330288. Its totient is φ = 2665140.

The previous prime is 3997673. The next prime is 3997723. The reversal of 3997713 is 3177993.

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 3997713 - 2⁶ = 3997649 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3997723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666283 + ... + 666288.

It is an arithmetic number, because the mean of its divisors is an integer number (1332572).

Almost surely, 2^3997713 is an apocalyptic number.

It is an amenable number.

3997713 is a deficient number, since it is larger than the sum of its proper divisors (1332575).

3997713 is a wasteful number, since it uses less digits than its factorization.

3997713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332574.

The product of its digits is 35721, while the sum is 39.

The square root of 3997713 is about 1999.4281682521. The cubic root of 3997713 is about 158.7098462108.

The spelling of 3997713 in words is "three million, nine hundred ninety-seven thousand, seven hundred thirteen".