82840529 has 4 divisors (see below), whose sum is σ = 83155776. Its totient is φ = 82525284.

The previous prime is 82840519. The next prime is 82840547. The reversal of 82840529 is 92504828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82840529 - 2²⁰ = 81791953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 82840492 and 82840501.

It is not an unprimeable number, because it can be changed into a prime (82840519) 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, 157229 + ... + 157754.

It is an arithmetic number, because the mean of its divisors is an integer number (20788944).

Almost surely, 2^82840529 is an apocalyptic number.

It is an amenable number.

82840529 is a deficient number, since it is larger than the sum of its proper divisors (315247).

82840529 is a wasteful number, since it uses less digits than its factorization.

82840529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315246.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 82840529 is about 9101.6772630104. The cubic root of 82840529 is about 435.9275210581.

The spelling of 82840529 in words is "eighty-two million, eight hundred forty thousand, five hundred twenty-nine".