288507097 has 4 divisors (see below), whose sum is σ = 288554980. Its totient is φ = 288459216.

The previous prime is 288507071. The next prime is 288507113. The reversal of 288507097 is 790705882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790705882 = 2 ⋅395352941.

It can be written as a sum of positive squares in 2 ways, for example, as 226081296 + 62425801 = 15036^2 + 7901^2 .

It is a cyclic number.

It is not a de Polignac number, because 288507097 - 2¹⁹ = 287982809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288507047) 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, 13338 + ... + 27475.

It is an arithmetic number, because the mean of its divisors is an integer number (72138745).

Almost surely, 2^288507097 is an apocalyptic number.

It is an amenable number.

288507097 is a deficient number, since it is larger than the sum of its proper divisors (47883).

288507097 is an equidigital number, since it uses as much as digits as its factorization.

288507097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47882.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 288507097 is about 16985.4966662738. The cubic root of 288507097 is about 660.7728145078.

The spelling of 288507097 in words is "two hundred eighty-eight million, five hundred seven thousand, ninety-seven".