3231395473 has 2 divisors, whose sum is σ = 3231395474. Its totient is φ = 3231395472.

The previous prime is 3231395449. The next prime is 3231395521. The reversal of 3231395473 is 3745931323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2543487489 + 687907984 = 50433^2 + 26228^2 .

It is an emirp because it is prime and its reverse (3745931323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3231395473 - 2¹³ = 3231387281 is a prime.

It is not a weakly prime, because it can be changed into another prime (3231395423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615697736 + 1615697737.

It is an arithmetic number, because the mean of its divisors is an integer number (1615697737).

Almost surely, 2^3231395473 is an apocalyptic number.

It is an amenable number.

3231395473 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231395473 is an equidigital number, since it uses as much as digits as its factorization.

3231395473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 40.

The square root of 3231395473 is about 56845.3645691537. The cubic root of 3231395473 is about 1478.4161704349.

The spelling of 3231395473 in words is "three billion, two hundred thirty-one million, three hundred ninety-five thousand, four hundred seventy-three".