863820448 has 24 divisors (see below), whose sum is σ = 1759291380. Its totient is φ = 417016320.

The previous prime is 863820413. The next prime is 863820449. The reversal of 863820448 is 844028368.

It can be written as a sum of positive squares in 2 ways, for example, as 814988304 + 48832144 = 28548^2 + 6988^2 .

It is not an unprimeable number, because it can be changed into a prime (863820449) 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, 464493 + ... + 466348.

Almost surely, 2^863820448 is an apocalyptic number.

It is an amenable number.

863820448 is an abundant number, since it is smaller than the sum of its proper divisors (895470932).

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

863820448 is a wasteful number, since it uses less digits than its factorization.

863820448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930880 (or 930872 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The square root of 863820448 is about 29390.8225131588. The cubic root of 863820448 is about 952.3746495189.

The spelling of 863820448 in words is "eight hundred sixty-three million, eight hundred twenty thousand, four hundred forty-eight".