863257265 has 8 divisors (see below), whose sum is σ = 1115594088. Its totient is φ = 637482240.

The previous prime is 863257247. The next prime is 863257273. The reversal of 863257265 is 562752368.

It can be written as a sum of positive squares in 4 ways, for example, as 719104 + 862538161 = 848^2 + 29369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 863257265 - 2¹² = 863253169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6640376 + ... + 6640505.

It is an arithmetic number, because the mean of its divisors is an integer number (139449261).

Almost surely, 2^863257265 is an apocalyptic number.

It is an amenable number.

863257265 is a deficient number, since it is larger than the sum of its proper divisors (252336823).

863257265 is a wasteful number, since it uses less digits than its factorization.

863257265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13280899.

The product of its digits is 604800, while the sum is 44.

The square root of 863257265 is about 29381.2400180796. The cubic root of 863257265 is about 952.1676320309.

The spelling of 863257265 in words is "eight hundred sixty-three million, two hundred fifty-seven thousand, two hundred sixty-five".