806424 has 16 divisors (see below), whose sum is σ = 2016120. Its totient is φ = 268800.

The previous prime is 806389. The next prime is 806447. The reversal of 806424 is 424608.

806424 = T₄₄₅ + T₄₄₆ + ... + T₄₅₂.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 33601 = 806424 / (8 + 0 + 6 + 4 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 806394 and 806403.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 806424.

It is an unprimeable number.

806424 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16777 + ... + 16824.

2⁸⁰⁶⁴²⁴ is an apocalyptic number.

It is an amenable number.

806424 is an abundant number, since it is smaller than the sum of its proper divisors (1209696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806424 is a wasteful number, since it uses less digits than its factorization.

806424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33610 (or 33606 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 806424 is about 898.0111357884. The cubic root of 806424 is about 93.0795942484.

The spelling of 806424 in words is "eight hundred six thousand, four hundred twenty-four".