1190889 has 16 divisors (see below), whose sum is σ = 2016640. Its totient is φ = 680400.

The previous prime is 1190873. The next prime is 1190897. The reversal of 1190889 is 9880911.

It is not a de Polignac number, because 1190889 - 2⁴ = 1190873 is a prime.

It is a super-2 number, since 2×1190889² = 2836433220642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1190809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2962 + ... + 3339.

It is an arithmetic number, because the mean of its divisors is an integer number (126040).

2^1190889 is an apocalyptic number.

It is an amenable number.

1190889 is a deficient number, since it is larger than the sum of its proper divisors (825751).

1190889 is an equidigital number, since it uses as much as digits as its factorization.

1190889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317 (or 6311 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 1190889 is about 1091.2786078724. The cubic root of 1190889 is about 105.9962322145.

The spelling of 1190889 in words is "one million, one hundred ninety thousand, eight hundred eighty-nine".