412912909 has 2 divisors, whose sum is σ = 412912910. Its totient is φ = 412912908.

The previous prime is 412912897. The next prime is 412912939. The reversal of 412912909 is 909219214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317908900 + 95004009 = 17830^2 + 9747^2 .

It is a cyclic number.

It is not a de Polignac number, because 412912909 - 2⁹ = 412912397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412912939) 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, 206456454 + 206456455.

It is an arithmetic number, because the mean of its divisors is an integer number (206456455).

Almost surely, 2^412912909 is an apocalyptic number.

It is an amenable number.

412912909 is a deficient number, since it is larger than the sum of its proper divisors (1).

412912909 is an equidigital number, since it uses as much as digits as its factorization.

412912909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 412912909 is about 20320.2585859531. The cubic root of 412912909 is about 744.6510739352.

The spelling of 412912909 in words is "four hundred twelve million, nine hundred twelve thousand, nine hundred nine".