1091367 has 16 divisors (see below), whose sum is σ = 1639680. Its totient is φ = 717336.

The previous prime is 1091359. The next prime is 1091369. The reversal of 1091367 is 7631901.

It is not a de Polignac number, because 1091367 - 2³ = 1091359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1091367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091369) 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, 1998 + ... + 2484.

It is an arithmetic number, because the mean of its divisors is an integer number (102480).

2^1091367 is an apocalyptic number.

1091367 is a deficient number, since it is larger than the sum of its proper divisors (548313).

1091367 is an equidigital number, since it uses as much as digits as its factorization.

1091367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1091367 is about 1044.6851200242. The cubic root of 1091367 is about 102.9572512456.

The spelling of 1091367 in words is "one million, ninety-one thousand, three hundred sixty-seven".