254779 has 8 divisors (see below), whose sum is σ = 308448. Its totient is φ = 205440.

The previous prime is 254777. The next prime is 254783. The reversal of 254779 is 977452.

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

It is a cyclic number.

It is not a de Polignac number, because 254779 - 2¹ = 254777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952 + ... + 1189.

It is an arithmetic number, because the mean of its divisors is an integer number (38556).

2²⁵⁴⁷⁷⁹ is an apocalyptic number.

254779 is a deficient number, since it is larger than the sum of its proper divisors (53669).

254779 is a wasteful number, since it uses less digits than its factorization.

254779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165.

The product of its digits is 17640, while the sum is 34.

The square root of 254779 is about 504.7563768790. The cubic root of 254779 is about 63.3949323737.

The spelling of 254779 in words is "two hundred fifty-four thousand, seven hundred seventy-nine".