263498 has 4 divisors (see below), whose sum is σ = 395250. Its totient is φ = 131748.

The previous prime is 263491. The next prime is 263503. The reversal of 263498 is 894362.

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

It can be written as a sum of positive squares in only one way, i.e., 243049 + 20449 = 493^2 + 143^2 .

It is a d-powerful number, because it can be written as 2⁵ + 6⁴ + 4⁹ + 3² + 9 + 8 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (263491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65873 + ... + 65876.

2²⁶³⁴⁹⁸ is an apocalyptic number.

263498 is a deficient number, since it is larger than the sum of its proper divisors (131752).

263498 is a wasteful number, since it uses less digits than its factorization.

263498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131751.

The product of its digits is 10368, while the sum is 32.

The square root of 263498 is about 513.3205626117. The cubic root of 263498 is about 64.1099996325.

The spelling of 263498 in words is "two hundred sixty-three thousand, four hundred ninety-eight".