853989401 has 2 divisors, whose sum is σ = 853989402. Its totient is φ = 853989400.

The previous prime is 853989347. The next prime is 853989431. The reversal of 853989401 is 104989358.

853989401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 568345600 + 285643801 = 23840^2 + 16901^2 .

It is a cyclic number.

It is not a de Polignac number, because 853989401 - 2⁶ = 853989337 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (853989431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426994700 + 426994701.

It is an arithmetic number, because the mean of its divisors is an integer number (426994701).

Almost surely, 2^853989401 is an apocalyptic number.

It is an amenable number.

853989401 is a deficient number, since it is larger than the sum of its proper divisors (1).

853989401 is an equidigital number, since it uses as much as digits as its factorization.

853989401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 853989401 is about 29223.0970466855. The cubic root of 853989401 is about 948.7478983754.

The spelling of 853989401 in words is "eight hundred fifty-three million, nine hundred eighty-nine thousand, four hundred one".