3831231 has 8 divisors (see below), whose sum is σ = 5180544. Its totient is φ = 2518040.

The previous prime is 3831221. The next prime is 3831253. The reversal of 3831231 is 1321383.

It is a happy number.

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 3831231 - 2⁵ = 3831199 is a prime.

It is a super-2 number, since 2×3831231² = 29356661950722, which contains 22 as substring.

3831231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3831198 and 3831207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3831221) 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, 8781 + ... + 9206.

It is an arithmetic number, because the mean of its divisors is an integer number (647568).

Almost surely, 2^3831231 is an apocalyptic number.

3831231 is a deficient number, since it is larger than the sum of its proper divisors (1349313).

3831231 is a wasteful number, since it uses less digits than its factorization.

3831231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18061.

The product of its digits is 432, while the sum is 21.

The square root of 3831231 is about 1957.3530596190. The cubic root of 3831231 is about 156.4754152333.

The spelling of 3831231 in words is "three million, eight hundred thirty-one thousand, two hundred thirty-one".