84316769 has 2 divisors, whose sum is σ = 84316770. Its totient is φ = 84316768.

The previous prime is 84316751. The next prime is 84316777. The reversal of 84316769 is 96761348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83028544 + 1288225 = 9112^2 + 1135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84316769 is a prime.

It is a super-2 number, since 2×84316769² = 14218635069198722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84316789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42158384 + 42158385.

It is an arithmetic number, because the mean of its divisors is an integer number (42158385).

Almost surely, 2^84316769 is an apocalyptic number.

It is an amenable number.

84316769 is a deficient number, since it is larger than the sum of its proper divisors (1).

84316769 is an equidigital number, since it uses as much as digits as its factorization.

84316769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 84316769 is about 9182.4162942006. The cubic root of 84316769 is about 438.5017376730.

The spelling of 84316769 in words is "eighty-four million, three hundred sixteen thousand, seven hundred sixty-nine".