384786253 has 2 divisors, whose sum is σ = 384786254. Its totient is φ = 384786252.

The previous prime is 384786247. The next prime is 384786289. The reversal of 384786253 is 352687483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374112964 + 10673289 = 19342^2 + 3267^2 .

It is a cyclic number.

It is not a de Polignac number, because 384786253 - 2⁵ = 384786221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384786053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192393126 + 192393127.

It is an arithmetic number, because the mean of its divisors is an integer number (192393127).

Almost surely, 2^384786253 is an apocalyptic number.

It is an amenable number.

384786253 is a deficient number, since it is larger than the sum of its proper divisors (1).

384786253 is an equidigital number, since it uses as much as digits as its factorization.

384786253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The square root of 384786253 is about 19615.9693362322. The cubic root of 384786253 is about 727.3439810599.

It can be divided in two parts, 3847 and 86253, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 384786253 in words is "three hundred eighty-four million, seven hundred eighty-six thousand, two hundred fifty-three".