286288097 has 4 divisors (see below), whose sum is σ = 286423956. Its totient is φ = 286152240.

The previous prime is 286288081. The next prime is 286288103. The reversal of 286288097 is 790882682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138203536 + 148084561 = 11756^2 + 12169^2 .

It is a cyclic number.

It is not a de Polignac number, because 286288097 - 2⁴ = 286288081 is a prime.

It is a super-3 number, since 3×286288097³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286288027) 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, 64718 + ... + 68999.

It is an arithmetic number, because the mean of its divisors is an integer number (71605989).

Almost surely, 2^286288097 is an apocalyptic number.

It is an amenable number.

286288097 is a deficient number, since it is larger than the sum of its proper divisors (135859).

286288097 is a wasteful number, since it uses less digits than its factorization.

286288097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135858.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 286288097 is about 16920.0501476798. The cubic root of 286288097 is about 659.0743812276.

The spelling of 286288097 in words is "two hundred eighty-six million, two hundred eighty-eight thousand, ninety-seven".