412804981 has 2 divisors, whose sum is σ = 412804982. Its totient is φ = 412804980.

The previous prime is 412804957. The next prime is 412804993. The reversal of 412804981 is 189408214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385336900 + 27468081 = 19630^2 + 5241^2 .

It is a cyclic number.

It is not a de Polignac number, because 412804981 - 2⁵ = 412804949 is a prime.

It is a super-2 number, since 2×412804981² = 340815904676820722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 412804981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412804681) 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, 206402490 + 206402491.

It is an arithmetic number, because the mean of its divisors is an integer number (206402491).

Almost surely, 2^412804981 is an apocalyptic number.

It is an amenable number.

412804981 is a deficient number, since it is larger than the sum of its proper divisors (1).

412804981 is an equidigital number, since it uses as much as digits as its factorization.

412804981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 412804981 is about 20317.6027375279. The cubic root of 412804981 is about 744.5861888204.

The spelling of 412804981 in words is "four hundred twelve million, eight hundred four thousand, nine hundred eighty-one".