12403678 has 8 divisors (see below), whose sum is σ = 21263472. Its totient is φ = 5315856.

The previous prime is 12403673. The next prime is 12403687. The reversal of 12403678 is 87630421.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442975 + ... + 443002.

It is an arithmetic number, because the mean of its divisors is an integer number (2657934).

Almost surely, 2^12403678 is an apocalyptic number.

12403678 is a deficient number, since it is larger than the sum of its proper divisors (8859794).

12403678 is an equidigital number, since it uses as much as digits as its factorization.

12403678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885986.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12403678 is about 3521.8855745183. The cubic root of 12403678 is about 231.4817877563.

The spelling of 12403678 in words is "twelve million, four hundred three thousand, six hundred seventy-eight".