863448785 has 16 divisors (see below), whose sum is σ = 1101485952. Its totient is φ = 647520000.

The previous prime is 863448779. The next prime is 863448793. The reversal of 863448785 is 587844368.

It is not a de Polignac number, because 863448785 - 2⁴ = 863448769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1100 + ... + 41570.

It is an arithmetic number, because the mean of its divisors is an integer number (68842872).

Almost surely, 2^863448785 is an apocalyptic number.

863448785 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

863448785 is a deficient number, since it is larger than the sum of its proper divisors (238037167).

863448785 is a wasteful number, since it uses less digits than its factorization.

863448785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40744.

The product of its digits is 5160960, while the sum is 53.

The square root of 863448785 is about 29384.4990598785. The cubic root of 863448785 is about 952.2380419647.

The spelling of 863448785 in words is "eight hundred sixty-three million, four hundred forty-eight thousand, seven hundred eighty-five".