82089489 has 8 divisors (see below), whose sum is σ = 110178112. Its totient is φ = 54363600.

The previous prime is 82089479. The next prime is 82089499. The reversal of 82089489 is 98498028.

It is an interprime number because it is at equal distance from previous prime (82089479) and next prime (82089499).

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

It is not a de Polignac number, because 82089489 - 2⁷ = 82089361 is a prime.

It is a super-2 number, since 2×82089489² = 13477368408562242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82089409) 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 7 ways as a sum of consecutive naturals, for example, 90154 + ... + 91059.

It is an arithmetic number, because the mean of its divisors is an integer number (13772264).

Almost surely, 2^82089489 is an apocalyptic number.

It is an amenable number.

82089489 is a deficient number, since it is larger than the sum of its proper divisors (28088623).

82089489 is a wasteful number, since it uses less digits than its factorization.

82089489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181367.

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 82089489 is about 9060.3249941710. The cubic root of 82089489 is about 434.6061331131.

It can be divided in two parts, 820 and 89489, that added together give a palindrome (90309).

The spelling of 82089489 in words is "eighty-two million, eighty-nine thousand, four hundred eighty-nine".