863031473 has 2 divisors, whose sum is σ = 863031474. Its totient is φ = 863031472.

The previous prime is 863031419. The next prime is 863031493. The reversal of 863031473 is 374130368.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 862479424 + 552049 = 29368^2 + 743^2 .

It is a cyclic number.

It is not a de Polignac number, because 863031473 - 2⁸ = 863031217 is a prime.

It is not a weakly prime, because it can be changed into another prime (863031493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431515736 + 431515737.

It is an arithmetic number, because the mean of its divisors is an integer number (431515737).

Almost surely, 2^863031473 is an apocalyptic number.

It is an amenable number.

863031473 is a deficient number, since it is larger than the sum of its proper divisors (1).

863031473 is an equidigital number, since it uses as much as digits as its factorization.

863031473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 863031473 is about 29377.3973149427. The cubic root of 863031473 is about 952.0846090474.

The spelling of 863031473 in words is "eight hundred sixty-three million, thirty-one thousand, four hundred seventy-three".