82772744 has 8 divisors (see below), whose sum is σ = 155198910. Its totient is φ = 41386368.

The previous prime is 82772707. The next prime is 82772749. The reversal of 82772744 is 44727728.

It can be written as a sum of positive squares in only one way, i.e., 81180100 + 1592644 = 9010^2 + 1262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (82772749) 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 as a sum of consecutive naturals, namely, 5173289 + ... + 5173304.

Almost surely, 2^82772744 is an apocalyptic number.

It is an amenable number.

82772744 is a deficient number, since it is larger than the sum of its proper divisors (72426166).

82772744 is a wasteful number, since it uses less digits than its factorization.

82772744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10346599 (or 10346595 counting only the distinct ones).

The product of its digits is 175616, while the sum is 41.

The square root of 82772744 is about 9097.9527367425. The cubic root of 82772744 is about 435.8085880885.

The spelling of 82772744 in words is "eighty-two million, seven hundred seventy-two thousand, seven hundred forty-four".