412461661 has 2 divisors, whose sum is σ = 412461662. Its totient is φ = 412461660.

The previous prime is 412461601. The next prime is 412461677. The reversal of 412461661 is 166164214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 335109636 + 77352025 = 18306^2 + 8795^2 .

It is a cyclic number.

It is not a de Polignac number, because 412461661 - 2⁹ = 412461149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412461601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206230830 + 206230831.

It is an arithmetic number, because the mean of its divisors is an integer number (206230831).

Almost surely, 2^412461661 is an apocalyptic number.

It is an amenable number.

412461661 is a deficient number, since it is larger than the sum of its proper divisors (1).

412461661 is an equidigital number, since it uses as much as digits as its factorization.

412461661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 412461661 is about 20309.1521487235. The cubic root of 412461661 is about 744.3797134124.

The spelling of 412461661 in words is "four hundred twelve million, four hundred sixty-one thousand, six hundred sixty-one".