1078791 has 16 divisors (see below), whose sum is σ = 1680384. Its totient is φ = 602784.

The previous prime is 1078789. The next prime is 1078807. The reversal of 1078791 is 1978701.

It is not a de Polignac number, because 1078791 - 2¹ = 1078789 is a prime.

1078791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078711) 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, 441 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (105024).

2^1078791 is an apocalyptic number.

1078791 is a deficient number, since it is larger than the sum of its proper divisors (601593).

1078791 is a wasteful number, since it uses less digits than its factorization.

1078791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150.

The product of its (nonzero) digits is 3528, while the sum is 33.

The square root of 1078791 is about 1038.6486412642. The cubic root of 1078791 is about 102.5602580445.

It can be divided in two parts, 107879 and 1, that added together give a triangular number (107880 = T₄₆₄).

The spelling of 1078791 in words is "one million, seventy-eight thousand, seven hundred ninety-one".