288893985 has 8 divisors (see below), whose sum is σ = 462230400. Its totient is φ = 154076784.

The previous prime is 288893977. The next prime is 288894013. The reversal of 288893985 is 589398882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 288893985 - 2³ = 288893977 is a prime.

It is a super-3 number, since 3×288893985³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9629785 + ... + 9629814.

It is an arithmetic number, because the mean of its divisors is an integer number (57778800).

Almost surely, 2^288893985 is an apocalyptic number.

It is an amenable number.

288893985 is a deficient number, since it is larger than the sum of its proper divisors (173336415).

288893985 is a wasteful number, since it uses less digits than its factorization.

288893985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19259607.

The product of its digits is 9953280, while the sum is 60.

The square root of 288893985 is about 16996.8816257571. The cubic root of 288893985 is about 661.0680480128.

The spelling of 288893985 in words is "two hundred eighty-eight million, eight hundred ninety-three thousand, nine hundred eighty-five".