424879 has 24 divisors (see below), whose sum is σ = 574560. Its totient is φ = 310464.

The previous prime is 424867. The next prime is 424889. The reversal of 424879 is 978424.

It is a happy number.

It is not a de Polignac number, because 424879 - 2¹⁵ = 392111 is a prime.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

Its product of digits (16128) is a multiple of the sum of its prime divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14637 + ... + 14665.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2⁴²⁴⁸⁷⁹ is an apocalyptic number.

424879 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

424879 is a deficient number, since it is larger than the sum of its proper divisors (149681).

424879 is a wasteful number, since it uses less digits than its factorization.

424879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 72 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 424879 is about 651.8274311503. The cubic root of 424879 is about 75.1775939547.

The spelling of 424879 in words is "four hundred twenty-four thousand, eight hundred seventy-nine".