190830889 has 8 divisors (see below), whose sum is σ = 203705280. Its totient is φ = 178239600.

The previous prime is 190830877. The next prime is 190830907. The reversal of 190830889 is 988038091.

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

It is a cyclic number.

It is not a de Polignac number, because 190830889 - 2²¹ = 188733737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190830859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69382 + ... + 72079.

It is an arithmetic number, because the mean of its divisors is an integer number (25463160).

Almost surely, 2^190830889 is an apocalyptic number.

190830889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

190830889 is a deficient number, since it is larger than the sum of its proper divisors (12874391).

190830889 is a wasteful number, since it uses less digits than its factorization.

190830889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141551.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 190830889 is about 13814.1553849665. The cubic root of 190830889 is about 575.7265060039.

The spelling of 190830889 in words is "one hundred ninety million, eight hundred thirty thousand, eight hundred eighty-nine".