8189919 has 12 divisors (see below), whose sum is σ = 12238200. Its totient is φ = 5271504.

The previous prime is 8189917. The next prime is 8189927. The reversal of 8189919 is 9199818.

8189919 = T₇₃₇ + T₇₃₈ + ... + T₇₆₅.

It is not a de Polignac number, because 8189919 - 2¹ = 8189917 is a prime.

It is a super-2 number, since 2×8189919² = 134149546453122, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8189917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15429 + ... + 15950.

It is an arithmetic number, because the mean of its divisors is an integer number (1019850).

Almost surely, 2^8189919 is an apocalyptic number.

8189919 is a deficient number, since it is larger than the sum of its proper divisors (4048281).

8189919 is a wasteful number, since it uses less digits than its factorization.

8189919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31414 (or 31411 counting only the distinct ones).

The product of its digits is 46656, while the sum is 45.

The square root of 8189919 is about 2861.8034523706. The cubic root of 8189919 is about 201.5702969041.

It can be divided in two parts, 81899 and 19, that added together give a palindrome (81918).

The spelling of 8189919 in words is "eight million, one hundred eighty-nine thousand, nine hundred nineteen".