1079691 has 4 divisors (see below), whose sum is σ = 1439592. Its totient is φ = 719792.

The previous prime is 1079681. The next prime is 1079711. The reversal of 1079691 is 1969701.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1079691 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1079621) 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, 179946 + ... + 179951.

It is an arithmetic number, because the mean of its divisors is an integer number (359898).

2^1079691 is an apocalyptic number.

1079691 is a deficient number, since it is larger than the sum of its proper divisors (359901).

1079691 is an equidigital number, since it uses as much as digits as its factorization.

1079691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359900.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 1079691 is about 1039.0818062116. The cubic root of 1079691 is about 102.5887710049.

It can be divided in two parts, 1079 and 691, that added together give a triangular number (1770 = T₅₉).

The spelling of 1079691 in words is "one million, seventy-nine thousand, six hundred ninety-one".