1323978 has 8 divisors (see below), whose sum is σ = 2647968. Its totient is φ = 441324.

The previous prime is 1323967. The next prime is 1323997. The reversal of 1323978 is 8793231.

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

1323978 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110326 + ... + 110337.

It is an arithmetic number, because the mean of its divisors is an integer number (330996).

2^1323978 is an apocalyptic number.

1323978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323978 is a wasteful number, since it uses less digits than its factorization.

1323978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220668.

The product of its digits is 9072, while the sum is 33.

The square root of 1323978 is about 1150.6424292542. The cubic root of 1323978 is about 109.8062152878.

The spelling of 1323978 in words is "one million, three hundred twenty-three thousand, nine hundred seventy-eight".