12477009 has 12 divisors (see below), whose sum is σ = 17077808. Its totient is φ = 8098440.

The previous prime is 12477007. The next prime is 12477011. The reversal of 12477009 is 90077421.

12477009 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12477007) and next prime (12477011).

It is not a de Polignac number, because 12477009 - 2¹ = 12477007 is a prime.

It is a super-3 number, since 3×12477009³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12477007) 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, 39964 + ... + 40274.

Almost surely, 2^12477009 is an apocalyptic number.

It is an amenable number.

12477009 is a deficient number, since it is larger than the sum of its proper divisors (4600799).

12477009 is an frugal number, since it uses more digits than its factorization.

12477009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 12477009 is about 3532.2809910878. The cubic root of 12477009 is about 231.9370679981.

It can be divided in two parts, 1247 and 7009, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 12477009 in words is "twelve million, four hundred seventy-seven thousand, nine".