12977242 has 16 divisors (see below), whose sum is σ = 19841472. Its totient is φ = 6364800.

The previous prime is 12977233. The next prime is 12977243. The reversal of 12977242 is 24277921.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12977198 and 12977207.

It is not an unprimeable number, because it can be changed into a prime (12977243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29073 + ... + 29515.

It is an arithmetic number, because the mean of its divisors is an integer number (1240092).

Almost surely, 2^12977242 is an apocalyptic number.

12977242 is a deficient number, since it is larger than the sum of its proper divisors (6864230).

12977242 is a wasteful number, since it uses less digits than its factorization.

12977242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its digits is 14112, while the sum is 34.

The square root of 12977242 is about 3602.3939262663. The cubic root of 12977242 is about 234.9961792045.

The spelling of 12977242 in words is "twelve million, nine hundred seventy-seven thousand, two hundred forty-two".