288883393 has 4 divisors (see below), whose sum is σ = 289034928. Its totient is φ = 288731860.

The previous prime is 288883367. The next prime is 288883403. The reversal of 288883393 is 393388882.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 288883393 - 2¹³ = 288875201 is a prime.

It is a super-2 number, since 2×288883393² = 166907229502384898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 288883393.

It is not an unprimeable number, because it can be changed into a prime (288883333) 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, 72871 + ... + 76732.

It is an arithmetic number, because the mean of its divisors is an integer number (72258732).

Almost surely, 2^288883393 is an apocalyptic number.

It is an amenable number.

288883393 is a deficient number, since it is larger than the sum of its proper divisors (151535).

288883393 is a wasteful number, since it uses less digits than its factorization.

288883393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151534.

The product of its digits is 1990656, while the sum is 52.

The square root of 288883393 is about 16996.5700363338. The cubic root of 288883393 is about 661.0599687880.

The spelling of 288883393 in words is "two hundred eighty-eight million, eight hundred eighty-three thousand, three hundred ninety-three".