82667653 has 2 divisors, whose sum is σ = 82667654. Its totient is φ = 82667652.

The previous prime is 82667639. The next prime is 82667659. The reversal of 82667653 is 35676628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55606849 + 27060804 = 7457^2 + 5202^2 .

It is a cyclic number.

It is not a de Polignac number, because 82667653 - 2⁵ = 82667621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82667659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41333826 + 41333827.

It is an arithmetic number, because the mean of its divisors is an integer number (41333827).

Almost surely, 2^82667653 is an apocalyptic number.

It is an amenable number.

82667653 is a deficient number, since it is larger than the sum of its proper divisors (1).

82667653 is an equidigital number, since it uses as much as digits as its factorization.

82667653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 82667653 is about 9092.1753722638. The cubic root of 82667653 is about 435.6240710012.

Subtracting from 82667653 its reverse (35676628), we obtain a square (46991025 = 6855²).

The spelling of 82667653 in words is "eighty-two million, six hundred sixty-seven thousand, six hundred fifty-three".