82711201 has 4 divisors (see below), whose sum is σ = 82898352. Its totient is φ = 82524052.

The previous prime is 82711159. The next prime is 82711207. The reversal of 82711201 is 10211728.

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 82711201 - 2¹⁵ = 82678433 is a prime.

It is a super-2 number, since 2×82711201² = 13682285541724802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82711207) 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, 92911 + ... + 93796.

It is an arithmetic number, because the mean of its divisors is an integer number (20724588).

Almost surely, 2^82711201 is an apocalyptic number.

It is an amenable number.

82711201 is a deficient number, since it is larger than the sum of its proper divisors (187151).

82711201 is a wasteful number, since it uses less digits than its factorization.

82711201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187150.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 82711201 is about 9094.5698633855. The cubic root of 82711201 is about 435.7005508423.

Adding to 82711201 its reverse (10211728), we get a palindrome (92922929).

The spelling of 82711201 in words is "eighty-two million, seven hundred eleven thousand, two hundred one".