821068411 has 2 divisors, whose sum is σ = 821068412. Its totient is φ = 821068410.

The previous prime is 821068349. The next prime is 821068429. The reversal of 821068411 is 114860128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 821068411 - 2¹⁵ = 821035643 is a prime.

It is not a weakly prime, because it can be changed into another prime (821068441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410534205 + 410534206.

It is an arithmetic number, because the mean of its divisors is an integer number (410534206).

Almost surely, 2^821068411 is an apocalyptic number.

821068411 is a deficient number, since it is larger than the sum of its proper divisors (1).

821068411 is an equidigital number, since it uses as much as digits as its factorization.

821068411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 821068411 is about 28654.2913191026. The cubic root of 821068411 is about 936.3964989712.

The spelling of 821068411 in words is "eight hundred twenty-one million, sixty-eight thousand, four hundred eleven".