288993387 has 16 divisors (see below), whose sum is σ = 414910080. Its totient is φ = 178253952.

The previous prime is 288993277. The next prime is 288993409. The reversal of 288993387 is 783399882.

It is not a de Polignac number, because 288993387 - 2¹⁹ = 288469099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (288993487) 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, 45013 + ... + 51030.

It is an arithmetic number, because the mean of its divisors is an integer number (25931880).

Almost surely, 2^288993387 is an apocalyptic number.

288993387 is a deficient number, since it is larger than the sum of its proper divisors (125916693).

288993387 is a wasteful number, since it uses less digits than its factorization.

288993387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96122.

The product of its digits is 5225472, while the sum is 57.

The square root of 288993387 is about 16999.8054988873. The cubic root of 288993387 is about 661.1438589265.

The spelling of 288993387 in words is "two hundred eighty-eight million, nine hundred ninety-three thousand, three hundred eighty-seven".