288887923 has 4 divisors (see below), whose sum is σ = 289264360. Its totient is φ = 288511488.

The previous prime is 288887903. The next prime is 288887933. The reversal of 288887923 is 329788882.

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 288887923 - 2⁹ = 288887411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288887903) 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, 187065 + ... + 188602.

It is an arithmetic number, because the mean of its divisors is an integer number (72316090).

Almost surely, 2^288887923 is an apocalyptic number.

288887923 is a deficient number, since it is larger than the sum of its proper divisors (376437).

288887923 is an equidigital number, since it uses as much as digits as its factorization.

288887923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376436.

The product of its digits is 3096576, while the sum is 55.

The square root of 288887923 is about 16996.7032979928. The cubic root of 288887923 is about 661.0634241452.

The spelling of 288887923 in words is "two hundred eighty-eight million, eight hundred eighty-seven thousand, nine hundred twenty-three".