263407 has 8 divisors (see below), whose sum is σ = 282240. Its totient is φ = 245280.

The previous prime is 263401. The next prime is 263411. The reversal of 263407 is 704362.

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

It is a cyclic number.

It is not a de Polignac number, because 263407 - 2³ = 263399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753 + ... + 1045.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

2²⁶³⁴⁰⁷ is an apocalyptic number.

263407 is a deficient number, since it is larger than the sum of its proper divisors (18833).

263407 is a wasteful number, since it uses less digits than its factorization.

263407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 263407 is about 513.2319163887. The cubic root of 263407 is about 64.1026185750.

Adding to 263407 its reverse (704362), we get a palindrome (967769).

The spelling of 263407 in words is "two hundred sixty-three thousand, four hundred seven".