424779 has 8 divisors (see below), whose sum is σ = 599760. Its totient is φ = 266496.

The previous prime is 424777. The next prime is 424811. The reversal of 424779 is 977424.

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

It is not a de Polignac number, because 424779 - 2¹ = 424777 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (424771) 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, 4114 + ... + 4215.

It is an arithmetic number, because the mean of its divisors is an integer number (74970).

2⁴²⁴⁷⁷⁹ is an apocalyptic number.

424779 is a deficient number, since it is larger than the sum of its proper divisors (174981).

424779 is a wasteful number, since it uses less digits than its factorization.

424779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8349.

The product of its digits is 14112, while the sum is 33.

The square root of 424779 is about 651.7507192171. The cubic root of 424779 is about 75.1716955309.

It can be divided in two parts, 42477 and 9, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 424779 in words is "four hundred twenty-four thousand, seven hundred seventy-nine".