12386505 has 16 divisors (see below), whose sum is σ = 20059200. Its totient is φ = 6525888.

The previous prime is 12386497. The next prime is 12386531. The reversal of 12386505 is 50568321.

It is not a de Polignac number, because 12386505 - 2³ = 12386497 is a prime.

It is a super-2 number, since 2×12386505² = 306851012230050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3730 + ... + 6219.

It is an arithmetic number, because the mean of its divisors is an integer number (1253700).

Almost surely, 2^12386505 is an apocalyptic number.

12386505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12386505 is a deficient number, since it is larger than the sum of its proper divisors (7672695).

12386505 is an equidigital number, since it uses as much as digits as its factorization.

12386505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10040.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 12386505 is about 3519.4466894670. The cubic root of 12386505 is about 231.3749089005.

The spelling of 12386505 in words is "twelve million, three hundred eighty-six thousand, five hundred five".