385279 has 2 divisors, whose sum is σ = 385280. Its totient is φ = 385278.

The previous prime is 385267. The next prime is 385289. The reversal of 385279 is 972583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385279 - 2¹⁵ = 352511 is a prime.

385279 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192639 + 192640.

It is an arithmetic number, because the mean of its divisors is an integer number (192640).

2³⁸⁵²⁷⁹ is an apocalyptic number.

385279 is a deficient number, since it is larger than the sum of its proper divisors (1).

385279 is an equidigital number, since it uses as much as digits as its factorization.

385279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 385279 is about 620.7084661900. The cubic root of 385279 is about 72.7654321053.

The spelling of 385279 in words is "three hundred eighty-five thousand, two hundred seventy-nine".