12827569 has 4 divisors (see below), whose sum is σ = 13100544. Its totient is φ = 12554596.

The previous prime is 12827561. The next prime is 12827579. The reversal of 12827569 is 96572821.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96572821 = 61 ⋅1583161.

It is a cyclic number.

It is not a de Polignac number, because 12827569 - 2³ = 12827561 is a prime.

It is a super-2 number, since 2×12827569² = 329093052899522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) 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 (12827561) 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, 136417 + ... + 136510.

It is an arithmetic number, because the mean of its divisors is an integer number (3275136).

Almost surely, 2^12827569 is an apocalyptic number.

It is an amenable number.

12827569 is a deficient number, since it is larger than the sum of its proper divisors (272975).

12827569 is an equidigital number, since it uses as much as digits as its factorization.

12827569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272974.

The product of its digits is 60480, while the sum is 40.

The square root of 12827569 is about 3581.5595764974. The cubic root of 12827569 is about 234.0892408054.

The spelling of 12827569 in words is "twelve million, eight hundred twenty-seven thousand, five hundred sixty-nine".