1091662 has 24 divisors (see below), whose sum is σ = 1943928. Its totient is φ = 456720.

The previous prime is 1091659. The next prime is 1091663. The reversal of 1091662 is 2661901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2973 + ... + 3319.

It is an arithmetic number, because the mean of its divisors is an integer number (80997).

2^1091662 is an apocalyptic number.

1091662 is a deficient number, since it is larger than the sum of its proper divisors (852266).

1091662 is a wasteful number, since it uses less digits than its factorization.

1091662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1091662 is about 1044.8263013535. The cubic root of 1091662 is about 102.9665269683.

It can be divided in two parts, 109 and 1662, that added together give a palindrome (1771).

The spelling of 1091662 in words is "one million, ninety-one thousand, six hundred sixty-two".