12804237 has 10 divisors (see below), whose sum is σ = 19127438. Its totient is φ = 8536104.

The previous prime is 12804229. The next prime is 12804251. The reversal of 12804237 is 73240821.

It can be written as a sum of positive squares in only one way, i.e., 10150596 + 2653641 = 3186^2 + 1629^2 .

It is not a de Polignac number, because 12804237 - 2³ = 12804229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12804237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12804277) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 78958 + ... + 79119.

Almost surely, 2^12804237 is an apocalyptic number.

It is an amenable number.

12804237 is a deficient number, since it is larger than the sum of its proper divisors (6323201).

12804237 is an equidigital number, since it uses as much as digits as its factorization.

12804237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158089 (or 158080 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 12804237 is about 3578.3008537573. The cubic root of 12804237 is about 233.9472267579.

It can be divided in two parts, 12804 and 237, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 12804237 in words is "twelve million, eight hundred four thousand, two hundred thirty-seven".