784425 has 12 divisors (see below), whose sum is σ = 1297040. Its totient is φ = 418320.

The previous prime is 784423. The next prime is 784447. The reversal of 784425 is 524487.

It is not a de Polignac number, because 784425 - 2¹ = 784423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 784392 and 784401.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 784425.

It is not an unprimeable number, because it can be changed into a prime (784423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5155 + ... + 5304.

2⁷⁸⁴⁴²⁵ is an apocalyptic number.

784425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

784425 is a deficient number, since it is larger than the sum of its proper divisors (512615).

784425 is a wasteful number, since it uses less digits than its factorization.

784425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10472 (or 10467 counting only the distinct ones).

The product of its digits is 8960, while the sum is 30.

The square root of 784425 is about 885.6777066179. The cubic root of 784425 is about 92.2253846972.

The spelling of 784425 in words is "seven hundred eighty-four thousand, four hundred twenty-five".