84061069 has 2 divisors, whose sum is σ = 84061070. Its totient is φ = 84061068.

The previous prime is 84061049. The next prime is 84061093. The reversal of 84061069 is 96016048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75429225 + 8631844 = 8685^2 + 2938^2 .

It is a cyclic number.

It is not a de Polignac number, because 84061069 - 2⁷ = 84060941 is a prime.

It is a super-2 number, since 2×84061069² = 14132526642845522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84061009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42030534 + 42030535.

It is an arithmetic number, because the mean of its divisors is an integer number (42030535).

Almost surely, 2^84061069 is an apocalyptic number.

It is an amenable number.

84061069 is a deficient number, since it is larger than the sum of its proper divisors (1).

84061069 is an equidigital number, since it uses as much as digits as its factorization.

84061069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 84061069 is about 9168.4823716905. The cubic root of 84061069 is about 438.0580203645.

The spelling of 84061069 in words is "eighty-four million, sixty-one thousand, sixty-nine".