863054813 has 2 divisors, whose sum is σ = 863054814. Its totient is φ = 863054812.

The previous prime is 863054807. The next prime is 863054821. The reversal of 863054813 is 318450368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 489869689 + 373185124 = 22133^2 + 19318^2 .

It is a cyclic number.

It is not a de Polignac number, because 863054813 - 2¹² = 863050717 is a prime.

It is a super-2 number, since 2×863054813² = 1489727220484929938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863054873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431527406 + 431527407.

It is an arithmetic number, because the mean of its divisors is an integer number (431527407).

Almost surely, 2^863054813 is an apocalyptic number.

It is an amenable number.

863054813 is a deficient number, since it is larger than the sum of its proper divisors (1).

863054813 is an equidigital number, since it uses as much as digits as its factorization.

863054813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 863054813 is about 29377.7945564333. The cubic root of 863054813 is about 952.0931917604.

The spelling of 863054813 in words is "eight hundred sixty-three million, fifty-four thousand, eight hundred thirteen".