12424477 has 4 divisors (see below), whose sum is σ = 13380220. Its totient is φ = 11468736.

The previous prime is 12424471. The next prime is 12424481. The reversal of 12424477 is 77442421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3024121 + 9400356 = 1739^2 + 3066^2 .

It is a cyclic number.

It is not a de Polignac number, because 12424477 - 2²³ = 4035869 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 (12424471) 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, 477852 + ... + 477877.

It is an arithmetic number, because the mean of its divisors is an integer number (3345055).

Almost surely, 2^12424477 is an apocalyptic number.

It is an amenable number.

12424477 is a deficient number, since it is larger than the sum of its proper divisors (955743).

12424477 is an equidigital number, since it uses as much as digits as its factorization.

12424477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955742.

The product of its digits is 12544, while the sum is 31.

The square root of 12424477 is about 3524.8371593593. The cubic root of 12424477 is about 231.6111015805.

Adding to 12424477 its reverse (77442421), we get a palindrome (89866898).

The spelling of 12424477 in words is "twelve million, four hundred twenty-four thousand, four hundred seventy-seven".