12387634 has 8 divisors (see below), whose sum is σ = 21235968. Its totient is φ = 5308980.

The previous prime is 12387629. The next prime is 12387653. The reversal of 12387634 is 43678321.

It is a happy number.

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

It is a super-2 number, since 2×12387634² = 306906952235912, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12387634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442402 + ... + 442429.

It is an arithmetic number, because the mean of its divisors is an integer number (2654496).

Almost surely, 2^12387634 is an apocalyptic number.

12387634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12387634 is a deficient number, since it is larger than the sum of its proper divisors (8848334).

12387634 is an equidigital number, since it uses as much as digits as its factorization.

12387634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884840.

The product of its digits is 24192, while the sum is 34.

The square root of 12387634 is about 3519.6070803429. The cubic root of 12387634 is about 231.3819384416.

The spelling of 12387634 in words is "twelve million, three hundred eighty-seven thousand, six hundred thirty-four".