82408201 has 4 divisors (see below), whose sum is σ = 82933252. Its totient is φ = 81883152.

The previous prime is 82408181. The next prime is 82408211. The reversal of 82408201 is 10280428.

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 34798201 + 47610000 = 5899^2 + 6900^2 .

It is a cyclic number.

It is not a de Polignac number, because 82408201 - 2¹³ = 82400009 is a prime.

It is a super-2 number, since 2×82408201² = 13582223184112802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82408211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262290 + ... + 262603.

It is an arithmetic number, because the mean of its divisors is an integer number (20733313).

Almost surely, 2^82408201 is an apocalyptic number.

It is an amenable number.

82408201 is a deficient number, since it is larger than the sum of its proper divisors (525051).

82408201 is a wasteful number, since it uses less digits than its factorization.

82408201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525050.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 82408201 is about 9077.8962871361. The cubic root of 82408201 is about 435.1678587658.

Adding to 82408201 its reverse (10280428), we get a palindrome (92688629).

The spelling of 82408201 in words is "eighty-two million, four hundred eight thousand, two hundred one".