123349678 has 8 divisors (see below), whose sum is σ = 185103072. Its totient is φ = 61648656.

The previous prime is 123349669. The next prime is 123349679. The reversal of 123349678 is 876943321.

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 (123349679) 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, 6550 + ... + 17017.

It is an arithmetic number, because the mean of its divisors is an integer number (23137884).

Almost surely, 2^123349678 is an apocalyptic number.

123349678 is a deficient number, since it is larger than the sum of its proper divisors (61753394).

123349678 is a wasteful number, since it uses less digits than its factorization.

123349678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26186.

The product of its digits is 217728, while the sum is 43.

The square root of 123349678 is about 11106.2900196240. The cubic root of 123349678 is about 497.7898152286.

The spelling of 123349678 in words is "one hundred twenty-three million, three hundred forty-nine thousand, six hundred seventy-eight".