12270877 has 4 divisors (see below), whose sum is σ = 12277980. Its totient is φ = 12263776.

The previous prime is 12270871. The next prime is 12270911. The reversal of 12270877 is 77807221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3426201 + 8844676 = 1851^2 + 2974^2 .

It is a cyclic number.

It is not a de Polignac number, because 12270877 - 2⁷ = 12270749 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 (12270871) 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, 903 + ... + 5035.

It is an arithmetic number, because the mean of its divisors is an integer number (3069495).

Almost surely, 2^12270877 is an apocalyptic number.

It is an amenable number.

12270877 is a deficient number, since it is larger than the sum of its proper divisors (7103).

12270877 is an equidigital number, since it uses as much as digits as its factorization.

12270877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7102.

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 12270877 is about 3502.9811589559. The cubic root of 12270877 is about 230.6526954888.

The spelling of 12270877 in words is "twelve million, two hundred seventy thousand, eight hundred seventy-seven".