1079891 has 8 divisors (see below), whose sum is σ = 1154160. Its totient is φ = 1006848.

The previous prime is 1079887. The next prime is 1079917. The reversal of 1079891 is 1989701.

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

It is a cyclic number.

It is not a de Polignac number, because 1079891 - 2² = 1079887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1079821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (144270).

2^1079891 is an apocalyptic number.

1079891 is a deficient number, since it is larger than the sum of its proper divisors (74269).

1079891 is a wasteful number, since it uses less digits than its factorization.

1079891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 1079891 is about 1039.1780405686. The cubic root of 1079891 is about 102.5951050664.

The spelling of 1079891 in words is "one million, seventy-nine thousand, eight hundred ninety-one".