12127797 has 12 divisors (see below), whose sum is σ = 19110624. Its totient is φ = 7350120.

The previous prime is 12127793. The next prime is 12127799. The reversal of 12127797 is 79772121.

12127797 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12127797 - 2² = 12127793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61153 + ... + 61350.

It is an arithmetic number, because the mean of its divisors is an integer number (1592552).

Almost surely, 2^12127797 is an apocalyptic number.

It is an amenable number.

12127797 is a deficient number, since it is larger than the sum of its proper divisors (6982827).

12127797 is a wasteful number, since it uses less digits than its factorization.

12127797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122520 (or 122517 counting only the distinct ones).

The product of its digits is 12348, while the sum is 36.

The square root of 12127797 is about 3482.4986719308. The cubic root of 12127797 is about 229.7527083771.

It can be divided in two parts, 1212 and 7797, that added together give a palindrome (9009).

The spelling of 12127797 in words is "twelve million, one hundred twenty-seven thousand, seven hundred ninety-seven".