263894 has 4 divisors (see below), whose sum is σ = 395844. Its totient is φ = 131946.

The previous prime is 263881. The next prime is 263899. The reversal of 263894 is 498362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 498362 = 2 ⋅249181.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 263894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65972 + ... + 65975.

It is an arithmetic number, because the mean of its divisors is an integer number (98961).

2²⁶³⁸⁹⁴ is an apocalyptic number.

263894 is a deficient number, since it is larger than the sum of its proper divisors (131950).

263894 is a wasteful number, since it uses less digits than its factorization.

263894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131949.

The product of its digits is 10368, while the sum is 32.

The square root of 263894 is about 513.7061416802. The cubic root of 263894 is about 64.1420996263.

The spelling of 263894 in words is "two hundred sixty-three thousand, eight hundred ninety-four".