3231971 has 2 divisors, whose sum is σ = 3231972. Its totient is φ = 3231970.

The previous prime is 3231953. The next prime is 3231973. The reversal of 3231971 is 1791323.

It is a strong prime.

It is an emirp because it is prime and its reverse (1791323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3231971 - 2¹⁴ = 3215587 is a prime.

Together with 3231973, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3231971.

It is not a weakly prime, because it can be changed into another prime (3231973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615985 + 1615986.

It is an arithmetic number, because the mean of its divisors is an integer number (1615986).

Almost surely, 2^3231971 is an apocalyptic number.

3231971 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231971 is an equidigital number, since it uses as much as digits as its factorization.

3231971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 26.

The square root of 3231971 is about 1797.7683388023. The cubic root of 3231971 is about 147.8503936223.

The spelling of 3231971 in words is "three million, two hundred thirty-one thousand, nine hundred seventy-one".