82969589 has 4 divisors (see below), whose sum is σ = 83449356. Its totient is φ = 82489824.

The previous prime is 82969573. The next prime is 82969591. The reversal of 82969589 is 98596928.

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 79959364 + 3010225 = 8942^2 + 1735^2 .

It is a cyclic number.

It is not a de Polignac number, because 82969589 - 2⁴ = 82969573 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 (82969519) 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, 239624 + ... + 239969.

It is an arithmetic number, because the mean of its divisors is an integer number (20862339).

Almost surely, 2^82969589 is an apocalyptic number.

It is an amenable number.

82969589 is a deficient number, since it is larger than the sum of its proper divisors (479767).

82969589 is a wasteful number, since it uses less digits than its factorization.

82969589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479766.

The product of its digits is 2799360, while the sum is 56.

The square root of 82969589 is about 9108.7644057797. The cubic root of 82969589 is about 436.1537855648.

The spelling of 82969589 in words is "eighty-two million, nine hundred sixty-nine thousand, five hundred eighty-nine".