82122774 has 8 divisors (see below), whose sum is σ = 164245560. Its totient is φ = 27374256.

The previous prime is 82122763. The next prime is 82122779. The reversal of 82122774 is 47722128.

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

82122774 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82122779) 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 3 ways as a sum of consecutive naturals, for example, 6843559 + ... + 6843570.

It is an arithmetic number, because the mean of its divisors is an integer number (20530695).

Almost surely, 2^82122774 is an apocalyptic number.

82122774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82122774 is a wasteful number, since it uses less digits than its factorization.

82122774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13687134.

The product of its digits is 12544, while the sum is 33.

The square root of 82122774 is about 9062.1616626498. The cubic root of 82122774 is about 434.6648654006.

The spelling of 82122774 in words is "eighty-two million, one hundred twenty-two thousand, seven hundred seventy-four".