1076801821 has 2 divisors, whose sum is σ = 1076801822. Its totient is φ = 1076801820.

The previous prime is 1076801749. The next prime is 1076801827. The reversal of 1076801821 is 1281086701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1076561721 + 240100 = 32811^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 1076801821 - 2¹⁹ = 1076277533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1076801827) 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, 538400910 + 538400911.

It is an arithmetic number, because the mean of its divisors is an integer number (538400911).

Almost surely, 2^1076801821 is an apocalyptic number.

It is an amenable number.

1076801821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1076801821 is an equidigital number, since it uses as much as digits as its factorization.

1076801821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 1076801821 is about 32814.6586299477. The cubic root of 1076801821 is about 1024.9718242503.

The spelling of 1076801821 in words is "one billion, seventy-six million, eight hundred one thousand, eight hundred twenty-one".