1080691 has 8 divisors (see below), whose sum is σ = 1133568. Its totient is φ = 1029000.

The previous prime is 1080683. The next prime is 1080713. The reversal of 1080691 is 1960801.

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 1080691 - 2³ = 1080683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1080661) 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, 1956 + ... + 2446.

It is an arithmetic number, because the mean of its divisors is an integer number (141696).

2^1080691 is an apocalyptic number.

1080691 is a deficient number, since it is larger than the sum of its proper divisors (52877).

1080691 is an equidigital number, since it uses as much as digits as its factorization.

1080691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 1080691 is about 1039.5628889105. The cubic root of 1080691 is about 102.6204334945.

It can be divided in two parts, 1080 and 691, that added together give a palindrome (1771).

The spelling of 1080691 in words is "one million, eighty thousand, six hundred ninety-one".