3209012897 has 2 divisors, whose sum is σ = 3209012898. Its totient is φ = 3209012896.

The previous prime is 3209012867. The next prime is 3209012971. The reversal of 3209012897 is 7982109023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2644427776 + 564585121 = 51424^2 + 23761^2 .

It is a cyclic number.

It is not a de Polignac number, because 3209012897 - 2²² = 3204818593 is a prime.

It is a super-2 number, since 2×3209012897² = 20595527546224665218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3209012827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1604506448 + 1604506449.

It is an arithmetic number, because the mean of its divisors is an integer number (1604506449).

Almost surely, 2^3209012897 is an apocalyptic number.

It is an amenable number.

3209012897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3209012897 is an equidigital number, since it uses as much as digits as its factorization.

3209012897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 3209012897 is about 56648.1499874444. The cubic root of 3209012897 is about 1474.9947941212.

The spelling of 3209012897 in words is "three billion, two hundred nine million, twelve thousand, eight hundred ninety-seven".