288856879 has 4 divisors (see below), whose sum is σ = 291556584. Its totient is φ = 286157176.

The previous prime is 288856871. The next prime is 288856901. The reversal of 288856879 is 978658882.

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 288856879 - 2³ = 288856871 is a prime.

It is a super-3 number, since 3×288856879³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288856871) 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 3 ways as a sum of consecutive naturals, for example, 1349692 + ... + 1349905.

It is an arithmetic number, because the mean of its divisors is an integer number (72889146).

Almost surely, 2^288856879 is an apocalyptic number.

288856879 is a deficient number, since it is larger than the sum of its proper divisors (2699705).

288856879 is a wasteful number, since it uses less digits than its factorization.

288856879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699704.

The product of its digits is 15482880, while the sum is 61.

The square root of 288856879 is about 16995.7900375358. The cubic root of 288856879 is about 661.0397439260.

The spelling of 288856879 in words is "two hundred eighty-eight million, eight hundred fifty-six thousand, eight hundred seventy-nine".