82445311 has 16 divisors (see below), whose sum is σ = 90810720. Its totient is φ = 74390400.

The previous prime is 82445303. The next prime is 82445323. The reversal of 82445311 is 11354428.

It is a cyclic number.

It is not a de Polignac number, because 82445311 - 2³ = 82445303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82445311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82445371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117261 + ... + 117961.

It is an arithmetic number, because the mean of its divisors is an integer number (5675670).

Almost surely, 2^82445311 is an apocalyptic number.

82445311 is a deficient number, since it is larger than the sum of its proper divisors (8365409).

82445311 is a wasteful number, since it uses less digits than its factorization.

82445311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its digits is 3840, while the sum is 28.

The square root of 82445311 is about 9079.9400328416. The cubic root of 82445311 is about 435.2331704523.

Adding to 82445311 its reverse (11354428), we get a palindrome (93799739).

It can be divided in two parts, 824453 and 11, that added together give a square (824464 = 908²).

The spelling of 82445311 in words is "eighty-two million, four hundred forty-five thousand, three hundred eleven".