12779127 has 24 divisors (see below), whose sum is σ = 19603584. Its totient is φ = 8314488.

The previous prime is 12779101. The next prime is 12779131. The reversal of 12779127 is 72197721.

It is not a de Polignac number, because 12779127 - 2⁷ = 12778999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12779091 and 12779100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12779147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9838 + ... + 11060.

It is an arithmetic number, because the mean of its divisors is an integer number (816816).

Almost surely, 2^12779127 is an apocalyptic number.

12779127 is a deficient number, since it is larger than the sum of its proper divisors (6824457).

12779127 is an equidigital number, since it uses as much as digits as its factorization.

12779127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1269 counting only the distinct ones).

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

The square root of 12779127 is about 3574.7904833710. The cubic root of 12779127 is about 233.7941977489.

It can be divided in two parts, 1277 and 9127, that added together give a square (10404 = 102²).

The spelling of 12779127 in words is "twelve million, seven hundred seventy-nine thousand, one hundred twenty-seven".