82529861 has 2 divisors, whose sum is σ = 82529862. Its totient is φ = 82529860.

The previous prime is 82529833. The next prime is 82529873. The reversal of 82529861 is 16892528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73856836 + 8673025 = 8594^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 82529861 - 2²² = 78335557 is a prime.

It is a super-2 number, since 2×82529861² = 13622355913358642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82529261) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41264930 + 41264931.

It is an arithmetic number, because the mean of its divisors is an integer number (41264931).

Almost surely, 2^82529861 is an apocalyptic number.

It is an amenable number.

82529861 is a deficient number, since it is larger than the sum of its proper divisors (1).

82529861 is an equidigital number, since it uses as much as digits as its factorization.

82529861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 41.

The square root of 82529861 is about 9084.5947075255. The cubic root of 82529861 is about 435.3819009332.

The spelling of 82529861 in words is "eighty-two million, five hundred twenty-nine thousand, eight hundred sixty-one".