1078447 has 4 divisors (see below), whose sum is σ = 1125360. Its totient is φ = 1031536.

The previous prime is 1078417. The next prime is 1078471. The reversal of 1078447 is 7448701.

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

It is a cyclic number.

It is not a de Polignac number, because 1078447 - 2¹¹ = 1076399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23422 + ... + 23467.

It is an arithmetic number, because the mean of its divisors is an integer number (281340).

2^1078447 is an apocalyptic number.

1078447 is a deficient number, since it is larger than the sum of its proper divisors (46913).

1078447 is an equidigital number, since it uses as much as digits as its factorization.

1078447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46912.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 1078447 is about 1038.4830282677. The cubic root of 1078447 is about 102.5493555683.

The spelling of 1078447 in words is "one million, seventy-eight thousand, four hundred forty-seven".