263930 has 8 divisors (see below), whose sum is σ = 475092. Its totient is φ = 105568.

The previous prime is 263927. The next prime is 263933. The reversal of 263930 is 39362.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (263927) and next prime (263933).

It can be written as a sum of positive squares in 2 ways, for example, as 261121 + 2809 = 511^2 + 53^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 263896 and 263905.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 263930.

It is not an unprimeable number, because it can be changed into a prime (263933) 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, 13187 + ... + 13206.

2²⁶³⁹³⁰ is an apocalyptic number.

263930 is a deficient number, since it is larger than the sum of its proper divisors (211162).

263930 is a wasteful number, since it uses less digits than its factorization.

263930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26400.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 263930 is about 513.7411799730. The cubic root of 263930 is about 64.1450162148.

The spelling of 263930 in words is "two hundred sixty-three thousand, nine hundred thirty".