82319777 has 8 divisors (see below), whose sum is σ = 85406400. Its totient is φ = 79249744.

The previous prime is 82319753. The next prime is 82319779. The reversal of 82319777 is 77791328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82319777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82319779) 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 7 ways as a sum of consecutive naturals, for example, 6458 + ... + 14364.

It is an arithmetic number, because the mean of its divisors is an integer number (10675800).

Almost surely, 2^82319777 is an apocalyptic number.

It is an amenable number.

82319777 is a deficient number, since it is larger than the sum of its proper divisors (3086623).

82319777 is a wasteful number, since it uses less digits than its factorization.

82319777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8295.

The product of its digits is 148176, while the sum is 44.

The square root of 82319777 is about 9073.0246886030. The cubic root of 82319777 is about 435.0121580254.

The spelling of 82319777 in words is "eighty-two million, three hundred nineteen thousand, seven hundred seventy-seven".