12477380 has 12 divisors (see below), whose sum is σ = 26202540. Its totient is φ = 4990944.

The previous prime is 12477373. The next prime is 12477391. The reversal of 12477380 is 8377421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1295044 + 11182336 = 1138^2 + 3344^2 .

It is an unprimeable number.

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, 311915 + ... + 311954.

It is an arithmetic number, because the mean of its divisors is an integer number (2183545).

Almost surely, 2^12477380 is an apocalyptic number.

12477380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12477380 is an abundant number, since it is smaller than the sum of its proper divisors (13725160).

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

12477380 is a wasteful number, since it uses less digits than its factorization.

12477380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623878 (or 623876 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 12477380 is about 3532.3335063383. Note that the first 3 decimals coincide. The cubic root of 12477380 is about 231.9393668343.

The spelling of 12477380 in words is "twelve million, four hundred seventy-seven thousand, three hundred eighty".