1089626 has 4 divisors (see below), whose sum is σ = 1634442. Its totient is φ = 544812.

The previous prime is 1089611. The next prime is 1089629. The reversal of 1089626 is 6269801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 564001 + 525625 = 751^2 + 725^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1089592 and 1089601.

It is not an unprimeable number, because it can be changed into a prime (1089629) 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 as a sum of consecutive naturals, namely, 272405 + ... + 272408.

2^1089626 is an apocalyptic number.

1089626 is a deficient number, since it is larger than the sum of its proper divisors (544816).

1089626 is an equidigital number, since it uses as much as digits as its factorization.

1089626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544815.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1089626 is about 1043.8515220088. The cubic root of 1089626 is about 102.9024746904.

The spelling of 1089626 in words is "one million, eighty-nine thousand, six hundred twenty-six".