84082069 has 2 divisors, whose sum is σ = 84082070. Its totient is φ = 84082068.

The previous prime is 84082027. The next prime is 84082079. The reversal of 84082069 is 96028048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71740900 + 12341169 = 8470^2 + 3513^2 .

It is a cyclic number.

It is not a de Polignac number, because 84082069 - 2²³ = 75693461 is a prime.

It is a super-3 number, since 3×84082069³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84082079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42041034 + 42041035.

It is an arithmetic number, because the mean of its divisors is an integer number (42041035).

Almost surely, 2^84082069 is an apocalyptic number.

It is an amenable number.

84082069 is a deficient number, since it is larger than the sum of its proper divisors (1).

84082069 is an equidigital number, since it uses as much as digits as its factorization.

84082069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 84082069 is about 9169.6275278770. The cubic root of 84082069 is about 438.0944956421.

It can be divided in two parts, 840820 and 69, that added together give a square (840889 = 917²).

The spelling of 84082069 in words is "eighty-four million, eighty-two thousand, sixty-nine".