3997311 has 8 divisors (see below), whose sum is σ = 5339520. Its totient is φ = 2659992.

The previous prime is 3997307. The next prime is 3997319. The reversal of 3997311 is 1137993.

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

It is not a de Polignac number, because 3997311 - 2² = 3997307 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997319) 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, 1660 + ... + 3278.

It is an arithmetic number, because the mean of its divisors is an integer number (667440).

Almost surely, 2^3997311 is an apocalyptic number.

3997311 is a deficient number, since it is larger than the sum of its proper divisors (1342209).

3997311 is a wasteful number, since it uses less digits than its factorization.

3997311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445.

The product of its digits is 5103, while the sum is 33.

The square root of 3997311 is about 1999.3276369820. The cubic root of 3997311 is about 158.7045262111.

The spelling of 3997311 in words is "three million, nine hundred ninety-seven thousand, three hundred eleven".