424647 has 12 divisors (see below), whose sum is σ = 634920. Its totient is φ = 273168.

The previous prime is 424639. The next prime is 424661. The reversal of 424647 is 746424.

It is not a de Polignac number, because 424647 - 2³ = 424639 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 424647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 553 + ... + 1074.

It is an arithmetic number, because the mean of its divisors is an integer number (52910).

2⁴²⁴⁶⁴⁷ is an apocalyptic number.

424647 is a deficient number, since it is larger than the sum of its proper divisors (210273).

424647 is a wasteful number, since it uses less digits than its factorization.

424647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1659 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 424647 is about 651.6494456378. The cubic root of 424647 is about 75.1639081938.

The spelling of 424647 in words is "four hundred twenty-four thousand, six hundred forty-seven".