981283856 has 20 divisors (see below), whose sum is σ = 2172843072. Its totient is φ = 420550176.

The previous prime is 981283847. The next prime is 981283859. The reversal of 981283856 is 658382189.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (981283859) 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, 4380620 + ... + 4380843.

Almost surely, 2^981283856 is an apocalyptic number.

It is an amenable number.

981283856 is an abundant number, since it is smaller than the sum of its proper divisors (1191559216).

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

981283856 is a wasteful number, since it uses less digits than its factorization.

981283856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8761478 (or 8761472 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The square root of 981283856 is about 31325.4506112841. The cubic root of 981283856 is about 993.7219539518.

The spelling of 981283856 in words is "nine hundred eighty-one million, two hundred eighty-three thousand, eight hundred fifty-six".