12477744 has 60 divisors (see below), whose sum is σ = 35428536. Its totient is φ = 4098816.

The previous prime is 12477721. The next prime is 12477749. The reversal of 12477744 is 44777421.

12477744 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12477699 and 12477708.

It is not an unprimeable number, because it can be changed into a prime (12477749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9919 + ... + 11105.

Almost surely, 2^12477744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12477744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17714268).

12477744 is an abundant number, since it is smaller than the sum of its proper divisors (22950792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12477744 is a wasteful number, since it uses less digits than its factorization.

12477744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1265 counting only the distinct ones).

The product of its digits is 43904, while the sum is 36.

The square root of 12477744 is about 3532.3850299762. The cubic root of 12477744 is about 231.9416222519.

The spelling of 12477744 in words is "twelve million, four hundred seventy-seven thousand, seven hundred forty-four".