1162889 has 12 divisors (see below), whose sum is σ = 1440576. Its totient is φ = 919152.

The previous prime is 1162879. The next prime is 1162897. The reversal of 1162889 is 9882611.

It is a de Polignac number, because none of the positive numbers 2^k-1162889 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1162859) 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 11 ways as a sum of consecutive naturals, for example, 692 + ... + 1674.

It is an arithmetic number, because the mean of its divisors is an integer number (120048).

2^1162889 is an apocalyptic number.

It is an amenable number.

1162889 is a deficient number, since it is larger than the sum of its proper divisors (277687).

1162889 is an equidigital number, since it uses as much as digits as its factorization.

1162889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 1003 counting only the distinct ones).

The product of its digits is 6912, while the sum is 35.

The square root of 1162889 is about 1078.3733119843. The cubic root of 1162889 is about 105.1589128104.

The spelling of 1162889 in words is "one million, one hundred sixty-two thousand, eight hundred eighty-nine".