384657263 has 2 divisors, whose sum is σ = 384657264. Its totient is φ = 384657262.

The previous prime is 384657257. The next prime is 384657271. The reversal of 384657263 is 362756483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384657263 - 2¹² = 384653167 is a prime.

It is a super-2 number, since 2×384657263² = 295922419957302338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384657233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192328631 + 192328632.

It is an arithmetic number, because the mean of its divisors is an integer number (192328632).

Almost surely, 2^384657263 is an apocalyptic number.

384657263 is a deficient number, since it is larger than the sum of its proper divisors (1).

384657263 is an equidigital number, since it uses as much as digits as its factorization.

384657263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 44.

The square root of 384657263 is about 19612.6811782581. The cubic root of 384657263 is about 727.2626973300.

The spelling of 384657263 in words is "three hundred eighty-four million, six hundred fifty-seven thousand, two hundred sixty-three".