863048772 has 36 divisors (see below), whose sum is σ = 2209217920. Its totient is φ = 284040432.

The previous prime is 863048749. The next prime is 863048777. The reversal of 863048772 is 277840368.

It is a happy number.

863048772 is a `hidden beast` number, since 8 + 630 + 4 + 8 + 7 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (863048777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148888 + ... + 154575.

Almost surely, 2^863048772 is an apocalyptic number.

It is an amenable number.

863048772 is an abundant number, since it is smaller than the sum of its proper divisors (1346169148).

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

863048772 is a wasteful number, since it uses less digits than its factorization.

863048772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303552 (or 303547 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 863048772 is about 29377.6917405027. The cubic root of 863048772 is about 952.0909703455.

The spelling of 863048772 in words is "eight hundred sixty-three million, forty-eight thousand, seven hundred seventy-two".