1089862 has 8 divisors (see below), whose sum is σ = 1674792. Its totient is φ = 531600.

The previous prime is 1089841. The next prime is 1089863. The reversal of 1089862 is 2689801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6564 + ... + 6727.

It is an arithmetic number, because the mean of its divisors is an integer number (209349).

2^1089862 is an apocalyptic number.

1089862 is a deficient number, since it is larger than the sum of its proper divisors (584930).

1089862 is a wasteful number, since it uses less digits than its factorization.

1089862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13334.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1089862 is about 1043.9645587854. The cubic root of 1089862 is about 102.9099033038.

The spelling of 1089862 in words is "one million, eighty-nine thousand, eight hundred sixty-two".