1146889 has 8 divisors (see below), whose sum is σ = 1191680. Its totient is φ = 1102896.

The previous prime is 1146881. The next prime is 1146911. The reversal of 1146889 is 9886411.

It is a happy number.

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

It is not a de Polignac number, because 1146889 - 2³ = 1146881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1146881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5032 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (148960).

2^1146889 is an apocalyptic number.

It is an amenable number.

1146889 is a deficient number, since it is larger than the sum of its proper divisors (44791).

1146889 is a wasteful number, since it uses less digits than its factorization.

1146889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399.

The product of its digits is 13824, while the sum is 37.

The square root of 1146889 is about 1070.9290359310. The cubic root of 1146889 is about 104.6743957311.

The spelling of 1146889 in words is "one million, one hundred forty-six thousand, eight hundred eighty-nine".