1091862 has 12 divisors (see below), whose sum is σ = 2365740. Its totient is φ = 363948.

The previous prime is 1091843. The next prime is 1091863. The reversal of 1091862 is 2681901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30312 + ... + 30347.

It is an arithmetic number, because the mean of its divisors is an integer number (197145).

2^1091862 is an apocalyptic number.

1091862 is an abundant number, since it is smaller than the sum of its proper divisors (1273878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1091862 is a wasteful number, since it uses less digits than its factorization.

1091862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60667 (or 60664 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1091862 is about 1044.9220066589. The cubic root of 1091862 is about 102.9728146434.

It can be divided in two parts, 1091 and 862, that added together give a triangular number (1953 = T₆₂).

The spelling of 1091862 in words is "one million, ninety-one thousand, eight hundred sixty-two".