82089719 has 4 divisors (see below), whose sum is σ = 86918544. Its totient is φ = 77260896.

The previous prime is 82089701. The next prime is 82089743. The reversal of 82089719 is 91798028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82089719 - 2¹² = 82085623 is a prime.

It is a super-2 number, since 2×82089719² = 13477443930997922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82089719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82089779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2414387 + ... + 2414420.

It is an arithmetic number, because the mean of its divisors is an integer number (21729636).

Almost surely, 2^82089719 is an apocalyptic number.

82089719 is a deficient number, since it is larger than the sum of its proper divisors (4828825).

82089719 is a wasteful number, since it uses less digits than its factorization.

82089719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4828824.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 82089719 is about 9060.3376868636. The cubic root of 82089719 is about 434.6065390088.

The spelling of 82089719 in words is "eighty-two million, eighty-nine thousand, seven hundred nineteen".