12477331 has 2 divisors, whose sum is σ = 12477332. Its totient is φ = 12477330.

The previous prime is 12477329. The next prime is 12477341. The reversal of 12477331 is 13377421.

12477331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12477331 - 2¹ = 12477329 is a prime.

It is a super-2 number, since 2×12477331² = 311367577767122, which contains 22 as substring.

Together with 12477329, it forms a pair of twin primes.

It is equal to p₈₁₇₃₄₅ and since 12477331 and 817345 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12477331.

It is not a weakly prime, because it can be changed into another prime (12477301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6238665 + 6238666.

It is an arithmetic number, because the mean of its divisors is an integer number (6238666).

Almost surely, 2^12477331 is an apocalyptic number.

12477331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12477331 is an equidigital number, since it uses as much as digits as its factorization.

12477331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 28.

The square root of 12477331 is about 3532.3265704065. The cubic root of 12477331 is about 231.9390632170.

The spelling of 12477331 in words is "twelve million, four hundred seventy-seven thousand, three hundred thirty-one".