3831997 has 8 divisors (see below), whose sum is σ = 4145400. Its totient is φ = 3521280.

The previous prime is 3831937. The next prime is 3832001. The reversal of 3831997 is 7991383.

It can be written as a sum of positive squares in 4 ways, for example, as 962361 + 2869636 = 981^2 + 1694^2 .

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 3831997 - 2¹¹ = 3829949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3831907) 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, 3129 + ... + 4177.

It is an arithmetic number, because the mean of its divisors is an integer number (518175).

Almost surely, 2^3831997 is an apocalyptic number.

It is an amenable number.

3831997 is a deficient number, since it is larger than the sum of its proper divisors (313403).

3831997 is a wasteful number, since it uses less digits than its factorization.

3831997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343.

The product of its digits is 40824, while the sum is 40.

The square root of 3831997 is about 1957.5487222544. The cubic root of 3831997 is about 156.4858428810.

It can be divided in two parts, 38319 and 97, that added together give a 4-th power (38416 = 14⁴).

The spelling of 3831997 in words is "three million, eight hundred thirty-one thousand, nine hundred ninety-seven".