1214678 has 4 divisors (see below), whose sum is σ = 1822020. Its totient is φ = 607338.

The previous prime is 1214671. The next prime is 1214683. The reversal of 1214678 is 8764121.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303668 + ... + 303671.

It is an arithmetic number, because the mean of its divisors is an integer number (455505).

2^1214678 is an apocalyptic number.

1214678 is a deficient number, since it is larger than the sum of its proper divisors (607342).

1214678 is an equidigital number, since it uses as much as digits as its factorization.

1214678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607341.

The product of its digits is 2688, while the sum is 29.

The square root of 1214678 is about 1102.1243124076. The cubic root of 1214678 is about 106.6973718027.

Adding to 1214678 its reverse (8764121), we get a palindrome (9978799).

The spelling of 1214678 in words is "one million, two hundred fourteen thousand, six hundred seventy-eight".