288374393 has 2 divisors, whose sum is σ = 288374394. Its totient is φ = 288374392.

The previous prime is 288374371. The next prime is 288374413. The reversal of 288374393 is 393473882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146216464 + 142157929 = 12092^2 + 11923^2 .

It is a cyclic number.

It is not a de Polignac number, because 288374393 - 2⁸ = 288374137 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_15655997 and since 288374393 and 15655997 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (288374693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144187196 + 144187197.

It is an arithmetic number, because the mean of its divisors is an integer number (144187197).

Almost surely, 2^288374393 is an apocalyptic number.

It is an amenable number.

288374393 is a deficient number, since it is larger than the sum of its proper divisors (1).

288374393 is an equidigital number, since it uses as much as digits as its factorization.

288374393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 288374393 is about 16981.5898254551. The cubic root of 288374393 is about 660.6714875452.

The spelling of 288374393 in words is "two hundred eighty-eight million, three hundred seventy-four thousand, three hundred ninety-three".