288987615 has 64 divisors (see below), whose sum is σ = 593049600. Its totient is φ = 130781952.

The previous prime is 288987613. The next prime is 288987619. The reversal of 288987615 is 516789882.

It is not a de Polignac number, because 288987615 - 2¹ = 288987613 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288987613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 95851 + ... + 98819.

It is an arithmetic number, because the mean of its divisors is an integer number (9266400).

Almost surely, 2^288987615 is an apocalyptic number.

288987615 is an abundant number, since it is smaller than the sum of its proper divisors (304061985).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

288987615 is a wasteful number, since it uses less digits than its factorization.

288987615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3093 (or 3087 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The square root of 288987615 is about 16999.6357313914. The cubic root of 288987615 is about 661.1394572713.

The spelling of 288987615 in words is "two hundred eighty-eight million, nine hundred eighty-seven thousand, six hundred fifteen".