3231947 has 2 divisors, whose sum is σ = 3231948. Its totient is φ = 3231946.

The previous prime is 3231931. The next prime is 3231953. The reversal of 3231947 is 7491323.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3231947 - 2⁴ = 3231931 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3237947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615973 + 1615974.

It is an arithmetic number, because the mean of its divisors is an integer number (1615974).

Almost surely, 2^3231947 is an apocalyptic number.

3231947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231947 is an equidigital number, since it uses as much as digits as its factorization.

3231947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 29.

The square root of 3231947 is about 1797.7616638476. The cubic root of 3231947 is about 147.8500276518.

It can be divided in two parts, 323 and 1947, that multiplied together give a triangular number (628881 = T₁₁₂₁).

The spelling of 3231947 in words is "three million, two hundred thirty-one thousand, nine hundred forty-seven".