1233978 has 8 divisors (see below), whose sum is σ = 2467968. Its totient is φ = 411324.

The previous prime is 1233949. The next prime is 1233983. The reversal of 1233978 is 8793321.

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

1233978 is an admirable number.

It is a Curzon 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, 102826 + ... + 102837.

It is an arithmetic number, because the mean of its divisors is an integer number (308496).

2^1233978 is an apocalyptic number.

1233978 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.

1233978 is a wasteful number, since it uses less digits than its factorization.

1233978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205668.

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

The square root of 1233978 is about 1110.8456238380. The cubic root of 1233978 is about 107.2595092660.

It can be divided in two parts, 1233 and 978, that added together give a triangular number (2211 = T₆₆).

The spelling of 1233978 in words is "one million, two hundred thirty-three thousand, nine hundred seventy-eight".