388313 has 2 divisors, whose sum is σ = 388314. Its totient is φ = 388312.

The previous prime is 388301. The next prime is 388319. The reversal of 388313 is 313883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375769 + 12544 = 613^2 + 112^2 .

It is an emirp because it is prime and its reverse (313883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 388313 - 2⁸ = 388057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (388319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194156 + 194157.

It is an arithmetic number, because the mean of its divisors is an integer number (194157).

2³⁸⁸³¹³ is an apocalyptic number.

It is an amenable number.

388313 is a deficient number, since it is larger than the sum of its proper divisors (1).

388313 is an equidigital number, since it uses as much as digits as its factorization.

388313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 388313 is about 623.1476550546. The cubic root of 388313 is about 72.9559376305.

The spelling of 388313 in words is "three hundred eighty-eight thousand, three hundred thirteen".