388273 has 2 divisors, whose sum is σ = 388274. Its totient is φ = 388272.

The previous prime is 388259. The next prime is 388277. The reversal of 388273 is 372883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388129 + 144 = 623^2 + 12^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388273 is a prime.

388273 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (388277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194136 + 194137.

It is an arithmetic number, because the mean of its divisors is an integer number (194137).

2³⁸⁸²⁷³ is an apocalyptic number.

It is an amenable number.

388273 is a deficient number, since it is larger than the sum of its proper divisors (1).

388273 is an equidigital number, since it uses as much as digits as its factorization.

388273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 388273 is about 623.1155591060. The cubic root of 388273 is about 72.9534324884.

The spelling of 388273 in words is "three hundred eighty-eight thousand, two hundred seventy-three".