82872061 has 2 divisors, whose sum is σ = 82872062. Its totient is φ = 82872060.

The previous prime is 82872043. The next prime is 82872067. The reversal of 82872061 is 16027828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74287161 + 8584900 = 8619^2 + 2930^2 .

It is a cyclic number.

It is not a de Polignac number, because 82872061 - 2⁷ = 82871933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82872067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41436030 + 41436031.

It is an arithmetic number, because the mean of its divisors is an integer number (41436031).

Almost surely, 2^82872061 is an apocalyptic number.

It is an amenable number.

82872061 is a deficient number, since it is larger than the sum of its proper divisors (1).

82872061 is an equidigital number, since it uses as much as digits as its factorization.

82872061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 82872061 is about 9103.4093064082. The cubic root of 82872061 is about 435.9828237910.

Adding to 82872061 its reverse (16027828), we get a palindrome (98899889).

The spelling of 82872061 in words is "eighty-two million, eight hundred seventy-two thousand, sixty-one".