286628233 has 8 divisors (see below), whose sum is σ = 294997952. Its totient is φ = 278291376.

The previous prime is 286628227. The next prime is 286628267. The reversal of 286628233 is 332826682.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 286628233 - 2²¹ = 284531081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286628533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10066 + ... + 25972.

It is an arithmetic number, because the mean of its divisors is an integer number (36874744).

Almost surely, 2^286628233 is an apocalyptic number.

It is an amenable number.

286628233 is a deficient number, since it is larger than the sum of its proper divisors (8369719).

286628233 is a wasteful number, since it uses less digits than its factorization.

286628233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16431.

The product of its digits is 165888, while the sum is 40.

The square root of 286628233 is about 16930.0984344451. The cubic root of 286628233 is about 659.3352911346.

The spelling of 286628233 in words is "two hundred eighty-six million, six hundred twenty-eight thousand, two hundred thirty-three".