288797 has 4 divisors (see below), whose sum is σ = 294300. Its totient is φ = 283296.

The previous prime is 288773. The next prime is 288803. The reversal of 288797 is 797882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 797882 = 2 ⋅398941.

It can be written as a sum of positive squares in 2 ways, for example, as 111556 + 177241 = 334^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 288797 - 2⁶ = 288733 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2672 + ... + 2777.

It is an arithmetic number, because the mean of its divisors is an integer number (73575).

2²⁸⁸⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

288797 is a deficient number, since it is larger than the sum of its proper divisors (5503).

288797 is an equidigital number, since it uses as much as digits as its factorization.

288797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502.

The product of its digits is 56448, while the sum is 41.

The square root of 288797 is about 537.3983624835. The cubic root of 288797 is about 66.0994063710.

The spelling of 288797 in words is "two hundred eighty-eight thousand, seven hundred ninety-seven".