12477422 has 8 divisors (see below), whose sum is σ = 19817136. Its totient is φ = 5871712.

The previous prime is 12477403. The next prime is 12477449. The reversal of 12477422 is 22477421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183458 + ... + 183525.

It is an arithmetic number, because the mean of its divisors is an integer number (2477142).

Almost surely, 2^12477422 is an apocalyptic number.

12477422 is a deficient number, since it is larger than the sum of its proper divisors (7339714).

12477422 is a wasteful number, since it uses less digits than its factorization.

12477422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367002.

The product of its digits is 6272, while the sum is 29.

The square root of 12477422 is about 3532.3394514118. The cubic root of 12477422 is about 231.9396270770.

Subtracting 12477422 from its reverse (22477421), we obtain a palindrome (9999999).

The spelling of 12477422 in words is "twelve million, four hundred seventy-seven thousand, four hundred twenty-two".