12012797 has 4 divisors (see below), whose sum is σ = 12099360. Its totient is φ = 11926236.

The previous prime is 12012743. The next prime is 12012809. The reversal of 12012797 is 79721021.

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: 79721021 = 3767 ⋅21163.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012797 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 (12012197) 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, 43073 + ... + 43350.

It is an arithmetic number, because the mean of its divisors is an integer number (3024840).

Almost surely, 2^12012797 is an apocalyptic number.

It is an amenable number.

12012797 is a deficient number, since it is larger than the sum of its proper divisors (86563).

12012797 is an equidigital number, since it uses as much as digits as its factorization.

12012797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86562.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 12012797 is about 3465.9482108075. The cubic root of 12012797 is about 229.0242024216.

The spelling of 12012797 in words is "twelve million, twelve thousand, seven hundred ninety-seven".