286883982 has 144 divisors (see below), whose sum is σ = 807346176. Its totient is φ = 71992800.

The previous prime is 286883981. The next prime is 286884001. The reversal of 286883982 is 289388682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286883981) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 472323 + ... + 472929.

Almost surely, 2^286883982 is an apocalyptic number.

286883982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 286883982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403673088).

286883982 is an abundant number, since it is smaller than the sum of its proper divisors (520462194).

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

286883982 is a wasteful number, since it uses less digits than its factorization.

286883982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 661 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 286883982 is about 16937.6498369756. The cubic root of 286883982 is about 659.5313339456.

The spelling of 286883982 in words is "two hundred eighty-six million, eight hundred eighty-three thousand, nine hundred eighty-two".