254687 has 4 divisors (see below), whose sum is σ = 255936. Its totient is φ = 253440.

The previous prime is 254663. The next prime is 254699. The reversal of 254687 is 786452.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 254687 - 2⁶ = 254623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239 + ... + 752.

It is an arithmetic number, because the mean of its divisors is an integer number (63984).

2²⁵⁴⁶⁸⁷ is an apocalyptic number.

254687 is a deficient number, since it is larger than the sum of its proper divisors (1249).

254687 is an equidigital number, since it uses as much as digits as its factorization.

254687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248.

The product of its digits is 13440, while the sum is 32.

The square root of 254687 is about 504.6652355770. The cubic root of 254687 is about 63.3873008761.

The spelling of 254687 in words is "two hundred fifty-four thousand, six hundred eighty-seven".