12477986 has 8 divisors (see below), whose sum is σ = 18732060. Its totient is φ = 6233968.

The previous prime is 12477979. The next prime is 12477989. The reversal of 12477986 is 68977421.

12477986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11868025 + 609961 = 3445^2 + 781^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12477989) 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, 3080 + ... + 5868.

Almost surely, 2^12477986 is an apocalyptic number.

12477986 is a deficient number, since it is larger than the sum of its proper divisors (6254074).

12477986 is a wasteful number, since it uses less digits than its factorization.

12477986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028.

The product of its digits is 169344, while the sum is 44.

The square root of 12477986 is about 3532.4192842866. The cubic root of 12477986 is about 231.9431217086.

The spelling of 12477986 in words is "twelve million, four hundred seventy-seven thousand, nine hundred eighty-six".