82850069 has 4 divisors (see below), whose sum is σ = 82879980. Its totient is φ = 82820160.

The previous prime is 82850059. The next prime is 82850081. The reversal of 82850069 is 96005828.

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 74218225 + 8631844 = 8615^2 + 2938^2 .

It is a cyclic number.

It is not a de Polignac number, because 82850069 - 2⁸ = 82849813 is a prime.

It is a super-2 number, since 2×82850069² = 13728267866609522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82850059) 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 3 ways as a sum of consecutive naturals, for example, 10322 + ... + 16499.

It is an arithmetic number, because the mean of its divisors is an integer number (20719995).

Almost surely, 2^82850069 is an apocalyptic number.

It is an amenable number.

82850069 is a deficient number, since it is larger than the sum of its proper divisors (29911).

82850069 is a wasteful number, since it uses less digits than its factorization.

82850069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29910.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 82850069 is about 9102.2013271516. The cubic root of 82850069 is about 435.9442543688.

The spelling of 82850069 in words is "eighty-two million, eight hundred fifty thousand, sixty-nine".