412893209 has 2 divisors, whose sum is σ = 412893210. Its totient is φ = 412893208.

The previous prime is 412893191. The next prime is 412893223. The reversal of 412893209 is 902398214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408040000 + 4853209 = 20200^2 + 2203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412893209 is a prime.

It is not a weakly prime, because it can be changed into another prime (412893409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206446604 + 206446605.

It is an arithmetic number, because the mean of its divisors is an integer number (206446605).

Almost surely, 2^412893209 is an apocalyptic number.

It is an amenable number.

412893209 is a deficient number, since it is larger than the sum of its proper divisors (1).

412893209 is an equidigital number, since it uses as much as digits as its factorization.

412893209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 412893209 is about 20319.7738422454. The cubic root of 412893209 is about 744.6392313576.

The spelling of 412893209 in words is "four hundred twelve million, eight hundred ninety-three thousand, two hundred nine".