1089538 has 8 divisors (see below), whose sum is σ = 1652940. Its totient is φ = 538560.

The previous prime is 1089523. The next prime is 1089551. The reversal of 1089538 is 8359801.

It can be written as a sum of positive squares in 2 ways, for example, as 935089 + 154449 = 967^2 + 393^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2883 + ... + 3238.

2^1089538 is an apocalyptic number.

1089538 is a deficient number, since it is larger than the sum of its proper divisors (563402).

1089538 is an equidigital number, since it uses as much as digits as its factorization.

1089538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1089538 is about 1043.8093695690. The cubic root of 1089538 is about 102.8997044244.

The spelling of 1089538 in words is "one million, eighty-nine thousand, five hundred thirty-eight".