84006829 has 2 divisors, whose sum is σ = 84006830. Its totient is φ = 84006828.

The previous prime is 84006803. The next prime is 84006841. The reversal of 84006829 is 92860048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83997225 + 9604 = 9165^2 + 98^2 .

It is a cyclic number.

It is not a de Polignac number, because 84006829 - 2⁷ = 84006701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84006889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42003414 + 42003415.

It is an arithmetic number, because the mean of its divisors is an integer number (42003415).

Almost surely, 2^84006829 is an apocalyptic number.

It is an amenable number.

84006829 is a deficient number, since it is larger than the sum of its proper divisors (1).

84006829 is an equidigital number, since it uses as much as digits as its factorization.

84006829 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 84006829 is about 9165.5239348332. The cubic root of 84006829 is about 437.9637818165.

The spelling of 84006829 in words is "eighty-four million, six thousand, eight hundred twenty-nine".