82727069 has 2 divisors, whose sum is σ = 82727070. Its totient is φ = 82727068.

The previous prime is 82727063. The next prime is 82727081. The reversal of 82727069 is 96072728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79887844 + 2839225 = 8938^2 + 1685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82727069 is a prime.

It is a super-2 number, since 2×82727069² = 13687535890661522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_4819298 and since 82727069 and 4819298 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82727063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41363534 + 41363535.

It is an arithmetic number, because the mean of its divisors is an integer number (41363535).

Almost surely, 2^82727069 is an apocalyptic number.

It is an amenable number.

82727069 is a deficient number, since it is larger than the sum of its proper divisors (1).

82727069 is an equidigital number, since it uses as much as digits as its factorization.

82727069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 82727069 is about 9095.4422102501. The cubic root of 82727069 is about 435.7284118582.

The spelling of 82727069 in words is "eighty-two million, seven hundred twenty-seven thousand, sixty-nine".