288855427 has 16 divisors (see below), whose sum is σ = 344307712. Its totient is φ = 237116160.

The previous prime is 288855421. The next prime is 288855433. The reversal of 288855427 is 724558882.

It is an interprime number because it is at equal distance from previous prime (288855421) and next prime (288855433).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-288855427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (288855421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14188 + ... + 27910.

It is an arithmetic number, because the mean of its divisors is an integer number (21519232).

Almost surely, 2^288855427 is an apocalyptic number.

288855427 is a deficient number, since it is larger than the sum of its proper divisors (55452285).

288855427 is a wasteful number, since it uses less digits than its factorization.

288855427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13858.

The product of its digits is 1433600, while the sum is 49.

The square root of 288855427 is about 16995.7473210212. The cubic root of 288855427 is about 661.0386363056.

The spelling of 288855427 in words is "two hundred eighty-eight million, eight hundred fifty-five thousand, four hundred twenty-seven".