863261345 has 4 divisors (see below), whose sum is σ = 1035913620. Its totient is φ = 690609072.

The previous prime is 863261327. The next prime is 863261351. The reversal of 863261345 is 543162368.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 223323136 + 639938209 = 14944^2 + 25297^2 .

It is a cyclic number.

It is not a de Polignac number, because 863261345 - 2⁸ = 863261089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 863261299 and 863261308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86326130 + ... + 86326139.

It is an arithmetic number, because the mean of its divisors is an integer number (258978405).

Almost surely, 2^863261345 is an apocalyptic number.

It is an amenable number.

863261345 is a deficient number, since it is larger than the sum of its proper divisors (172652275).

863261345 is a wasteful number, since it uses less digits than its factorization.

863261345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172652274.

The product of its digits is 103680, while the sum is 38.

The square root of 863261345 is about 29381.3094500569. The cubic root of 863261345 is about 952.1691321004.

The spelling of 863261345 in words is "eight hundred sixty-three million, two hundred sixty-one thousand, three hundred forty-five".