263828 has 6 divisors (see below), whose sum is σ = 461706. Its totient is φ = 131912.

The previous prime is 263827. The next prime is 263843. The reversal of 263828 is 828362.

It can be written as a sum of positive squares in only one way, i.e., 228484 + 35344 = 478^2 + 188^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 263828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32975 + ... + 32982.

It is an arithmetic number, because the mean of its divisors is an integer number (76951).

2²⁶³⁸²⁸ is an apocalyptic number.

It is an amenable number.

263828 is a deficient number, since it is larger than the sum of its proper divisors (197878).

263828 is a wasteful number, since it uses less digits than its factorization.

263828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65961 (or 65959 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 263828 is about 513.6418986025. The cubic root of 263828 is about 64.1367518585.

The spelling of 263828 in words is "two hundred sixty-three thousand, eight hundred twenty-eight".