3821231 has 2 divisors, whose sum is σ = 3821232. Its totient is φ = 3821230.

The previous prime is 3821221. The next prime is 3821239. The reversal of 3821231 is 1321283.

It is a strong prime.

It is an emirp because it is prime and its reverse (1321283) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3821231 is a prime.

It is a super-2 number, since 2×3821231² = 29203612710722, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a pancake number, because a pancake can be divided into 3821231 parts by 2764 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3821239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1910615 + 1910616.

It is an arithmetic number, because the mean of its divisors is an integer number (1910616).

Almost surely, 2^3821231 is an apocalyptic number.

3821231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3821231 is an equidigital number, since it uses as much as digits as its factorization.

3821231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 3821231 is about 1954.7969203986. The cubic root of 3821231 is about 156.3391563710.

The spelling of 3821231 in words is "three million, eight hundred twenty-one thousand, two hundred thirty-one".