254479 has 4 divisors (see below), whose sum is σ = 262720. Its totient is φ = 246240.

The previous prime is 254461. The next prime is 254489. The reversal of 254479 is 974452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 254479 - 2⁵ = 254447 is a prime.

It is a super-2 number, since 2×254479² = 129519122882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 8209 = 254479 / (2 + 5 + 4 + 4 + 7 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254489) 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, 4074 + ... + 4135.

It is an arithmetic number, because the mean of its divisors is an integer number (65680).

2²⁵⁴⁴⁷⁹ is an apocalyptic number.

254479 is a deficient number, since it is larger than the sum of its proper divisors (8241).

254479 is an equidigital number, since it uses as much as digits as its factorization.

254479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8240.

The product of its digits is 10080, while the sum is 31.

The square root of 254479 is about 504.4591162820. The cubic root of 254479 is about 63.3700402786.

The spelling of 254479 in words is "two hundred fifty-four thousand, four hundred seventy-nine".