285091379 has 2 divisors, whose sum is σ = 285091380. Its totient is φ = 285091378.

The previous prime is 285091357. The next prime is 285091393. The reversal of 285091379 is 973190582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285091379 - 2⁸ = 285091123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (285091679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142545689 + 142545690.

It is an arithmetic number, because the mean of its divisors is an integer number (142545690).

Almost surely, 2^285091379 is an apocalyptic number.

285091379 is a deficient number, since it is larger than the sum of its proper divisors (1).

285091379 is an equidigital number, since it uses as much as digits as its factorization.

285091379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 285091379 is about 16884.6492116360. The cubic root of 285091379 is about 658.1547624562.

The spelling of 285091379 in words is "two hundred eighty-five million, ninety-one thousand, three hundred seventy-nine".