12297855 has 32 divisors (see below), whose sum is σ = 20736000. Its totient is φ = 6215040.

The previous prime is 12297853. The next prime is 12297863. The reversal of 12297855 is 55879221.

It is not a de Polignac number, because 12297855 - 2¹ = 12297853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12297853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24396 + ... + 24894.

It is an arithmetic number, because the mean of its divisors is an integer number (648000).

Almost surely, 2^12297855 is an apocalyptic number.

12297855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12297855 is a deficient number, since it is larger than the sum of its proper divisors (8438145).

12297855 is a wasteful number, since it uses less digits than its factorization.

12297855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591.

The product of its digits is 50400, while the sum is 39.

The square root of 12297855 is about 3506.8297649016. The cubic root of 12297855 is about 230.8216047366.

The spelling of 12297855 in words is "twelve million, two hundred ninety-seven thousand, eight hundred fifty-five".