863079012 has 18 divisors (see below), whose sum is σ = 2181672038. Its totient is φ = 287692992.

The previous prime is 863078989. The next prime is 863079031. The reversal of 863079012 is 210970368.

863079012 is a `hidden beast` number, since 8 + 630 + 7 + 9 + 0 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 821166336 + 41912676 = 28656^2 + 6474^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×863079012² = 1489810761909792288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 23974417 = 863079012 / (8 + 6 + 3 + 0 + 7 + 9 + 0 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11987173 + ... + 11987244.

Almost surely, 2^863079012 is an apocalyptic number.

It is an amenable number.

863079012 is an abundant number, since it is smaller than the sum of its proper divisors (1318593026).

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

863079012 is a wasteful number, since it uses less digits than its factorization.

863079012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23974427 (or 23974422 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 863079012 is about 29378.2064122369. The cubic root of 863079012 is about 952.1020901863.

The spelling of 863079012 in words is "eight hundred sixty-three million, seventy-nine thousand, twelve".