287393201 has 4 divisors (see below), whose sum is σ = 288009072. Its totient is φ = 286777332.

The previous prime is 287393191. The next prime is 287393233. The reversal of 287393201 is 102393782.

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 287393201 - 2²² = 283198897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (287393261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307235 + ... + 308168.

It is an arithmetic number, because the mean of its divisors is an integer number (72002268).

Almost surely, 2^287393201 is an apocalyptic number.

It is an amenable number.

287393201 is a deficient number, since it is larger than the sum of its proper divisors (615871).

287393201 is an equidigital number, since it uses as much as digits as its factorization.

287393201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615870.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 287393201 is about 16952.6753345895. The cubic root of 287393201 is about 659.9213259451.

The spelling of 287393201 in words is "two hundred eighty-seven million, three hundred ninety-three thousand, two hundred one".