82744061 has 4 divisors (see below), whose sum is σ = 82981500. Its totient is φ = 82506624.

The previous prime is 82744043. The next prime is 82744091. The reversal of 82744061 is 16044728.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25060036 + 57684025 = 5006^2 + 7595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82744061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82744091) 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, 118196 + ... + 118893.

It is an arithmetic number, because the mean of its divisors is an integer number (20745375).

Almost surely, 2^82744061 is an apocalyptic number.

It is an amenable number.

82744061 is a deficient number, since it is larger than the sum of its proper divisors (237439).

82744061 is a wasteful number, since it uses less digits than its factorization.

82744061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237438.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 82744061 is about 9096.3762565101. The cubic root of 82744061 is about 435.7582424421.

Adding to 82744061 its reverse (16044728), we get a palindrome (98788789).

The spelling of 82744061 in words is "eighty-two million, seven hundred forty-four thousand, sixty-one".