12904783 has 4 divisors (see below), whose sum is σ = 13037920. Its totient is φ = 12771648.

The previous prime is 12904777. The next prime is 12904789. The reversal of 12904783 is 38740921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38740921 = 967 ⋅40063.

It is an interprime number because it is at equal distance from previous prime (12904777) and next prime (12904789).

It is a cyclic number.

It is not a de Polignac number, because 12904783 - 2⁹ = 12904271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12904789) 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, 66423 + ... + 66616.

It is an arithmetic number, because the mean of its divisors is an integer number (3259480).

Almost surely, 2^12904783 is an apocalyptic number.

12904783 is a deficient number, since it is larger than the sum of its proper divisors (133137).

12904783 is an equidigital number, since it uses as much as digits as its factorization.

12904783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133136.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 12904783 is about 3592.3227861650. The cubic root of 12904783 is about 234.5579921524.

The spelling of 12904783 in words is "twelve million, nine hundred four thousand, seven hundred eighty-three".