863387460 has 144 divisors (see below), whose sum is σ = 2863014336. Its totient is φ = 209316096.

The previous prime is 863387453. The next prime is 863387537. The reversal of 863387460 is 64783368.

863387460 is a `hidden beast` number, since 8 + 633 + 8 + 7 + 4 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154027 + ... + 159533.

It is an arithmetic number, because the mean of its divisors is an integer number (19882044).

Almost surely, 2^863387460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863387460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1431507168).

863387460 is an abundant number, since it is smaller than the sum of its proper divisors (1999626876).

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

863387460 is a wasteful number, since it uses less digits than its factorization.

863387460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602 (or 5597 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 863387460 is about 29383.4555489990. The cubic root of 863387460 is about 952.2154977283.

The spelling of 863387460 in words is "eight hundred sixty-three million, three hundred eighty-seven thousand, four hundred sixty".