288116887 has 4 divisors (see below), whose sum is σ = 289142496. Its totient is φ = 287091280.

The previous prime is 288116879. The next prime is 288116903. The reversal of 288116887 is 788611882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 288116887 - 2³ = 288116879 is a prime.

It is a super-2 number, since 2×288116887² = 166022681149141538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 288116887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288114887) 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, 512383 + ... + 512944.

It is an arithmetic number, because the mean of its divisors is an integer number (72285624).

Almost surely, 2^288116887 is an apocalyptic number.

288116887 is a deficient number, since it is larger than the sum of its proper divisors (1025609).

288116887 is a wasteful number, since it uses less digits than its factorization.

288116887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025608.

The product of its digits is 344064, while the sum is 49.

The square root of 288116887 is about 16974.0062153871. The cubic root of 288116887 is about 660.4747785216.

The spelling of 288116887 in words is "two hundred eighty-eight million, one hundred sixteen thousand, eight hundred eighty-seven".