863950656 has 112 divisors (see below), whose sum is σ = 2462588928. Its totient is φ = 266534400.

The previous prime is 863950651. The next prime is 863950657. The reversal of 863950656 is 656059368.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863950651) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 133741 + ... + 140051.

Almost surely, 2^863950656 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 863950656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1231294464).

863950656 is an abundant number, since it is smaller than the sum of its proper divisors (1598638272).

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

863950656 is a wasteful number, since it uses less digits than its factorization.

863950656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380 (or 6370 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The square root of 863950656 is about 29393.0375429284. The cubic root of 863950656 is about 952.4224991882.

It can be divided in two parts, 8639 and 50656, that added together give a palindrome (59295).

The spelling of 863950656 in words is "eight hundred sixty-three million, nine hundred fifty thousand, six hundred fifty-six".