12808274 has 4 divisors (see below), whose sum is σ = 19212414. Its totient is φ = 6404136.

The previous prime is 12808241. The next prime is 12808283. The reversal of 12808274 is 47280821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12652249 + 156025 = 3557^2 + 395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12808274.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202067 + ... + 3202070.

Almost surely, 2^12808274 is an apocalyptic number.

12808274 is a deficient number, since it is larger than the sum of its proper divisors (6404140).

12808274 is an equidigital number, since it uses as much as digits as its factorization.

12808274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404139.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 12808274 is about 3578.8649038487. The cubic root of 12808274 is about 233.9718109565.

The spelling of 12808274 in words is "twelve million, eight hundred eight thousand, two hundred seventy-four".