12784630 has 8 divisors (see below), whose sum is σ = 23012352. Its totient is φ = 5113848.

The previous prime is 12784613. The next prime is 12784633. The reversal of 12784630 is 3648721.

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

It is a junction number, because it is equal to n+sod(n) for n = 12784592 and 12784601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12784633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639222 + ... + 639241.

It is an arithmetic number, because the mean of its divisors is an integer number (2876544).

Almost surely, 2^12784630 is an apocalyptic number.

12784630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12784630 is a deficient number, since it is larger than the sum of its proper divisors (10227722).

12784630 is a wasteful number, since it uses less digits than its factorization.

12784630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278470.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12784630 is about 3575.5600959850. The cubic root of 12784630 is about 233.8277520712.

The spelling of 12784630 in words is "twelve million, seven hundred eighty-four thousand, six hundred thirty".