82286389 has 4 divisors (see below), whose sum is σ = 83041420. Its totient is φ = 81531360.

The previous prime is 82286383. The next prime is 82286437. The reversal of 82286389 is 98368228.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48762289 + 33524100 = 6983^2 + 5790^2 .

It is a cyclic number.

It is not a de Polignac number, because 82286389 - 2³ = 82286381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82286381) 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, 377352 + ... + 377569.

It is an arithmetic number, because the mean of its divisors is an integer number (20760355).

Almost surely, 2^82286389 is an apocalyptic number.

It is an amenable number.

82286389 is a deficient number, since it is larger than the sum of its proper divisors (755031).

82286389 is a wasteful number, since it uses less digits than its factorization.

82286389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755030.

The product of its digits is 331776, while the sum is 46.

The square root of 82286389 is about 9071.1845422745. The cubic root of 82286389 is about 434.9533380168.

The spelling of 82286389 in words is "eighty-two million, two hundred eighty-six thousand, three hundred eighty-nine".