1067791 has 4 divisors (see below), whose sum is σ = 1087992. Its totient is φ = 1047592.

The previous prime is 1067789. The next prime is 1067797. The reversal of 1067791 is 1977601.

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 1067791 - 2¹ = 1067789 is a prime.

It is a super-2 number, since 2×1067791² = 2280355239362, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

1067791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1067797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10021 + ... + 10126.

It is an arithmetic number, because the mean of its divisors is an integer number (271998).

2^1067791 is an apocalyptic number.

1067791 is a deficient number, since it is larger than the sum of its proper divisors (20201).

1067791 is an equidigital number, since it uses as much as digits as its factorization.

1067791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20200.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 1067791 is about 1033.3397311630. The cubic root of 1067791 is about 102.2104778480.

The spelling of 1067791 in words is "one million, sixty-seven thousand, seven hundred ninety-one".