863213112 has 40 divisors (see below), whose sum is σ = 2417797800. Its totient is φ = 287737488.

The previous prime is 863213081. The next prime is 863213123. The reversal of 863213112 is 211312368.

It is a happy number.

863213112 is a `hidden beast` number, since 8 + 632 + 13 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 665412 + ... + 666707.

It is an arithmetic number, because the mean of its divisors is an integer number (60444945).

Almost surely, 2^863213112 is an apocalyptic number.

It is an amenable number.

863213112 is an abundant number, since it is smaller than the sum of its proper divisors (1554584688).

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

863213112 is a wasteful number, since it uses less digits than its factorization.

863213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332137 (or 1332124 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 863213112 is about 29380.4886276590. The cubic root of 863213112 is about 952.1513982552.

The spelling of 863213112 in words is "eight hundred sixty-three million, two hundred thirteen thousand, one hundred twelve".