12477272 has 16 divisors (see below), whose sum is σ = 23443560. Its totient is φ = 6225664.

The previous prime is 12477271. The next prime is 12477277. The reversal of 12477272 is 27277421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12477271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3368 + ... + 6024.

Almost surely, 2^12477272 is an apocalyptic number.

It is an amenable number.

12477272 is a deficient number, since it is larger than the sum of its proper divisors (10966288).

12477272 is a wasteful number, since it uses less digits than its factorization.

12477272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250 (or 3246 counting only the distinct ones).

The product of its digits is 10976, while the sum is 32.

The square root of 12477272 is about 3532.3182189605. The cubic root of 12477272 is about 231.9386976360.

The spelling of 12477272 in words is "twelve million, four hundred seventy-seven thousand, two hundred seventy-two".