288081797 has 2 divisors, whose sum is σ = 288081798. Its totient is φ = 288081796.

The previous prime is 288081769. The next prime is 288081817. The reversal of 288081797 is 797180882.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255808036 + 32273761 = 15994^2 + 5681^2 .

It is a cyclic number.

It is not a de Polignac number, because 288081797 - 2⁶ = 288081733 is a prime.

It is a super-2 number, since 2×288081797² = 165982243525498418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288081727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144040898 + 144040899.

It is an arithmetic number, because the mean of its divisors is an integer number (144040899).

Almost surely, 2^288081797 is an apocalyptic number.

It is an amenable number.

288081797 is a deficient number, since it is larger than the sum of its proper divisors (1).

288081797 is an equidigital number, since it uses as much as digits as its factorization.

288081797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 50.

The square root of 288081797 is about 16972.9725446075. The cubic root of 288081797 is about 660.4479641718.

The spelling of 288081797 in words is "two hundred eighty-eight million, eighty-one thousand, seven hundred ninety-seven".