263667 has 8 divisors (see below), whose sum is σ = 354240. Its totient is φ = 174440.

The previous prime is 263657. The next prime is 263677. The reversal of 263667 is 766362.

It is an interprime number because it is at equal distance from previous prime (263657) and next prime (263677).

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 263667 - 2⁴ = 263651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (263647) 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, 292 + ... + 782.

It is an arithmetic number, because the mean of its divisors is an integer number (44280).

2²⁶³⁶⁶⁷ is an apocalyptic number.

263667 is a deficient number, since it is larger than the sum of its proper divisors (90573).

263667 is a wasteful number, since it uses less digits than its factorization.

263667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its digits is 9072, while the sum is 30.

The square root of 263667 is about 513.4851507103. The cubic root of 263667 is about 64.1237028035.

The spelling of 263667 in words is "two hundred sixty-three thousand, six hundred sixty-seven".