886090021 has 2 divisors, whose sum is σ = 886090022. Its totient is φ = 886090020.

The previous prime is 886089959. The next prime is 886090027. The reversal of 886090021 is 120090688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 883872900 + 2217121 = 29730^2 + 1489^2 .

It is a cyclic number.

It is not a de Polignac number, because 886090021 - 2⁹ = 886089509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (886090027) 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, 443045010 + 443045011.

It is an arithmetic number, because the mean of its divisors is an integer number (443045011).

Almost surely, 2^886090021 is an apocalyptic number.

It is an amenable number.

886090021 is a deficient number, since it is larger than the sum of its proper divisors (1).

886090021 is an equidigital number, since it uses as much as digits as its factorization.

886090021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 886090021 is about 29767.2642511871. The cubic root of 886090021 is about 960.4894859826.

The spelling of 886090021 in words is "eight hundred eighty-six million, ninety thousand, twenty-one".