12784801 has 4 divisors (see below), whose sum is σ = 12802752. Its totient is φ = 12766852.

The previous prime is 12784789. The next prime is 12784817. The reversal of 12784801 is 10848721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12784801 is a prime.

It is a super-2 number, since 2×12784801² = 326902273219202, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12784831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7861 + ... + 9346.

It is an arithmetic number, because the mean of its divisors is an integer number (3200688).

Almost surely, 2^12784801 is an apocalyptic number.

It is an amenable number.

12784801 is a deficient number, since it is larger than the sum of its proper divisors (17951).

12784801 is an equidigital number, since it uses as much as digits as its factorization.

12784801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17950.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 12784801 is about 3575.5840082426. The cubic root of 12784801 is about 233.8287945826.

The spelling of 12784801 in words is "twelve million, seven hundred eighty-four thousand, eight hundred one".