84214069 has 2 divisors, whose sum is σ = 84214070. Its totient is φ = 84214068.

The previous prime is 84214033. The next prime is 84214093. The reversal of 84214069 is 96041248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59830225 + 24383844 = 7735^2 + 4938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84214069 is a prime.

It is a super-2 number, since 2×84214069² = 14184018835073522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84214019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42107034 + 42107035.

It is an arithmetic number, because the mean of its divisors is an integer number (42107035).

Almost surely, 2^84214069 is an apocalyptic number.

It is an amenable number.

84214069 is a deficient number, since it is larger than the sum of its proper divisors (1).

84214069 is an equidigital number, since it uses as much as digits as its factorization.

84214069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 84214069 is about 9176.8223803232. The cubic root of 84214069 is about 438.3236298635.

The spelling of 84214069 in words is "eighty-four million, two hundred fourteen thousand, sixty-nine".