263297 has 4 divisors (see below), whose sum is σ = 264516. Its totient is φ = 262080.

The previous prime is 263293. The next prime is 263303. The reversal of 263297 is 792362.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 792362 = 2 ⋅396181.

It can be written as a sum of positive squares in 2 ways, for example, as 83521 + 179776 = 289^2 + 424^2 .

It is a cyclic number.

It is not a de Polignac number, because 263297 - 2² = 263293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188 + ... + 749.

It is an arithmetic number, because the mean of its divisors is an integer number (66129).

2²⁶³²⁹⁷ is an apocalyptic number.

It is an amenable number.

263297 is a deficient number, since it is larger than the sum of its proper divisors (1219).

263297 is an equidigital number, since it uses as much as digits as its factorization.

263297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218.

The product of its digits is 4536, while the sum is 29.

The square root of 263297 is about 513.1247411692. The cubic root of 263297 is about 64.0936941478.

The spelling of 263297 in words is "two hundred sixty-three thousand, two hundred ninety-seven".