1296978 has 32 divisors (see below), whose sum is σ = 2826240. Its totient is φ = 395280.

The previous prime is 1296973. The next prime is 1296983. The reversal of 1296978 is 8796921.

It is an interprime number because it is at equal distance from previous prime (1296973) and next prime (1296983).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1296973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3351 + ... + 3717.

It is an arithmetic number, because the mean of its divisors is an integer number (88320).

2^1296978 is an apocalyptic number.

1296978 is an abundant number, since it is smaller than the sum of its proper divisors (1529262).

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

1296978 is a wasteful number, since it uses less digits than its factorization.

1296978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its digits is 54432, while the sum is 42.

The square root of 1296978 is about 1138.8494193703. The cubic root of 1296978 is about 109.0546537350.

The spelling of 1296978 in words is "one million, two hundred ninety-six thousand, nine hundred seventy-eight".