286693668 has 30 divisors (see below), whose sum is σ = 749474726. Its totient is φ = 95564448.

The previous prime is 286693663. The next prime is 286693711. The reversal of 286693668 is 866396682.

286693668 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 285677604 + 1016064 = 16902^2 + 1008^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (286693663) 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 9 ways as a sum of consecutive naturals, for example, 442105 + ... + 442752.

Almost surely, 2^286693668 is an apocalyptic number.

It is an amenable number.

286693668 is an abundant number, since it is smaller than the sum of its proper divisors (462781058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286693668 is a wasteful number, since it uses less digits than its factorization.

286693668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884873 (or 884862 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 286693668 is about 16932.0308291711. The cubic root of 286693668 is about 659.3854610261.

The spelling of 286693668 in words is "two hundred eighty-six million, six hundred ninety-three thousand, six hundred sixty-eight".