868863473 has 2 divisors, whose sum is σ = 868863474. Its totient is φ = 868863472.

The previous prime is 868863467. The next prime is 868863491. The reversal of 868863473 is 374368868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 464531809 + 404331664 = 21553^2 + 20108^2 .

It is a cyclic number.

It is not a de Polignac number, because 868863473 - 2¹⁸ = 868601329 is a prime.

It is not a weakly prime, because it can be changed into another prime (868863493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434431736 + 434431737.

It is an arithmetic number, because the mean of its divisors is an integer number (434431737).

Almost surely, 2^868863473 is an apocalyptic number.

It is an amenable number.

868863473 is a deficient number, since it is larger than the sum of its proper divisors (1).

868863473 is an equidigital number, since it uses as much as digits as its factorization.

868863473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 53.

The square root of 868863473 is about 29476.4901743746. The cubic root of 868863473 is about 954.2243907676.

The spelling of 868863473 in words is "eight hundred sixty-eight million, eight hundred sixty-three thousand, four hundred seventy-three".