1089874 has 4 divisors (see below), whose sum is σ = 1634814. Its totient is φ = 544936.

The previous prime is 1089863. The next prime is 1089877. The reversal of 1089874 is 4789801.

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., 1087849 + 2025 = 1043^2 + 45^2 .

It is not an unprimeable number, because it can be changed into a prime (1089877) 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, 272467 + ... + 272470.

2^1089874 is an apocalyptic number.

1089874 is a deficient number, since it is larger than the sum of its proper divisors (544940).

1089874 is an equidigital number, since it uses as much as digits as its factorization.

1089874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544939.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1089874 is about 1043.9703060911. The cubic root of 1089874 is about 102.9102810013.

The spelling of 1089874 in words is "one million, eighty-nine thousand, eight hundred seventy-four".