287268093 has 32 divisors (see below), whose sum is σ = 494373120. Its totient is φ = 161455680.

The previous prime is 287268077. The next prime is 287268097. The reversal of 287268093 is 390862782.

It is not a de Polignac number, because 287268093 - 2⁴ = 287268077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287268097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 930 + ... + 23987.

It is an arithmetic number, because the mean of its divisors is an integer number (15449160).

Almost surely, 2^287268093 is an apocalyptic number.

It is an amenable number.

287268093 is a deficient number, since it is larger than the sum of its proper divisors (207105027).

287268093 is a wasteful number, since it uses less digits than its factorization.

287268093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24994 (or 24988 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 287268093 is about 16948.9850138585. The cubic root of 287268093 is about 659.8255530689.

The spelling of 287268093 in words is "two hundred eighty-seven million, two hundred sixty-eight thousand, ninety-three".