1089361 has 8 divisors (see below), whose sum is σ = 1340864. Its totient is φ = 861840.

The previous prime is 1089359. The next prime is 1089383. The reversal of 1089361 is 1639801.

It is a happy number.

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

It is not a de Polignac number, because 1089361 - 2¹ = 1089359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1089161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5895 + ... + 6076.

It is an arithmetic number, because the mean of its divisors is an integer number (167608).

2^1089361 is an apocalyptic number.

It is an amenable number.

1089361 is a deficient number, since it is larger than the sum of its proper divisors (251503).

1089361 is a wasteful number, since it uses less digits than its factorization.

1089361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11991.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1089361 is about 1043.7245805288. The cubic root of 1089361 is about 102.8941319603.

It can be divided in two parts, 1089 and 361, that multiplied together give a square (393129 = 627²).

The spelling of 1089361 in words is "one million, eighty-nine thousand, three hundred sixty-one".