3431205997 has 2 divisors, whose sum is σ = 3431205998. Its totient is φ = 3431205996.

The previous prime is 3431205979. The next prime is 3431206003. The reversal of 3431205997 is 7995021343.

Together with previous prime (3431205979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2007577636 + 1423628361 = 44806^2 + 37731^2 .

It is a cyclic number.

It is not a de Polignac number, because 3431205997 - 2¹¹ = 3431203949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3431205097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715602998 + 1715602999.

It is an arithmetic number, because the mean of its divisors is an integer number (1715602999).

Almost surely, 2^3431205997 is an apocalyptic number.

It is an amenable number.

3431205997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431205997 is an equidigital number, since it uses as much as digits as its factorization.

3431205997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 3431205997 is about 58576.4969676405. The cubic root of 3431205997 is about 1508.2810134520.

The spelling of 3431205997 in words is "three billion, four hundred thirty-one million, two hundred five thousand, nine hundred ninety-seven".