384853853 has 2 divisors, whose sum is σ = 384853854. Its totient is φ = 384853852.

The previous prime is 384853831. The next prime is 384853877. The reversal of 384853853 is 358358483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202009369 + 182844484 = 14213^2 + 13522^2 .

It is a cyclic number.

It is not a de Polignac number, because 384853853 - 2⁸ = 384853597 is a prime.

It is a super-2 number, since 2×384853853² = 296224976337891218, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 384853798 and 384853807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384853753) 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, 192426926 + 192426927.

It is an arithmetic number, because the mean of its divisors is an integer number (192426927).

Almost surely, 2^384853853 is an apocalyptic number.

It is an amenable number.

384853853 is a deficient number, since it is larger than the sum of its proper divisors (1).

384853853 is an equidigital number, since it uses as much as digits as its factorization.

384853853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1382400, while the sum is 47.

The square root of 384853853 is about 19617.6923464509. The cubic root of 384853853 is about 727.3865723026.

The spelling of 384853853 in words is "three hundred eighty-four million, eight hundred fifty-three thousand, eight hundred fifty-three".