263907 has 24 divisors (see below), whose sum is σ = 449280. Its totient is φ = 146160.

The previous prime is 263899. The next prime is 263909. The reversal of 263907 is 709362.

It is not a de Polignac number, because 263907 - 2³ = 263899 is a prime.

263907 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 263907.

It is not an unprimeable number, because it can be changed into a prime (263909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3682 + ... + 3752.

It is an arithmetic number, because the mean of its divisors is an integer number (18720).

2²⁶³⁹⁰⁷ is an apocalyptic number.

263907 is a deficient number, since it is larger than the sum of its proper divisors (185373).

263907 is a wasteful number, since it uses less digits than its factorization.

263907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 263907 is about 513.7187946727. The cubic root of 263907 is about 64.1431528694.

The spelling of 263907 in words is "two hundred sixty-three thousand, nine hundred seven".