288297965 has 8 divisors (see below), whose sum is σ = 346805880. Its totient is φ = 230072832.

The previous prime is 288297959. The next prime is 288297973. The reversal of 288297965 is 569792882.

It can be written as a sum of positive squares in 4 ways, for example, as 24462916 + 263835049 = 4946^2 + 16243^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 288297965 - 2⁴ = 288297949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 288297965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68444 + ... + 72533.

It is an arithmetic number, because the mean of its divisors is an integer number (43350735).

Almost surely, 2^288297965 is an apocalyptic number.

It is an amenable number.

288297965 is a deficient number, since it is larger than the sum of its proper divisors (58507915).

288297965 is a wasteful number, since it uses less digits than its factorization.

288297965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141391.

The product of its digits is 4354560, while the sum is 56.

The square root of 288297965 is about 16979.3393569950. The cubic root of 288297965 is about 660.6131163639.

The spelling of 288297965 in words is "two hundred eighty-eight million, two hundred ninety-seven thousand, nine hundred sixty-five".