82049311 has 4 divisors (see below), whose sum is σ = 82068624. Its totient is φ = 82030000.

The previous prime is 82049287. The next prime is 82049329. The reversal of 82049311 is 11394028.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82049311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82049311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82049351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190 + ... + 12811.

It is an arithmetic number, because the mean of its divisors is an integer number (20517156).

Almost surely, 2^82049311 is an apocalyptic number.

82049311 is a deficient number, since it is larger than the sum of its proper divisors (19313).

82049311 is a wasteful number, since it uses less digits than its factorization.

82049311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19312.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 82049311 is about 9058.1074734185. The cubic root of 82049311 is about 434.5352167875.

The spelling of 82049311 in words is "eighty-two million, forty-nine thousand, three hundred eleven".