3431204209 has 2 divisors, whose sum is σ = 3431204210. Its totient is φ = 3431204208.

The previous prime is 3431204137. The next prime is 3431204237. The reversal of 3431204209 is 9024021343.

It is an a-pointer prime, because the next prime (3431204237) can be obtained adding 3431204209 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2151568225 + 1279635984 = 46385^2 + 35772^2 .

It is a cyclic number.

It is not a de Polignac number, because 3431204209 - 2²³ = 3422815601 is a prime.

It is not a weakly prime, because it can be changed into another prime (3431207209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715602104 + 1715602105.

It is an arithmetic number, because the mean of its divisors is an integer number (1715602105).

Almost surely, 2^3431204209 is an apocalyptic number.

It is an amenable number.

3431204209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431204209 is an equidigital number, since it uses as much as digits as its factorization.

3431204209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 3431204209 is about 58576.4817055446. The cubic root of 3431204209 is about 1508.2807514637.

The spelling of 3431204209 in words is "three billion, four hundred thirty-one million, two hundred four thousand, two hundred nine".