84719669 has 2 divisors, whose sum is σ = 84719670. Its totient is φ = 84719668.

The previous prime is 84719629. The next prime is 84719717. The reversal of 84719669 is 96691748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75047569 + 9672100 = 8663^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 84719669 - 2¹⁶ = 84654133 is a prime.

It is a super-2 number, since 2×84719669² = 14354844630939122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84719629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42359834 + 42359835.

It is an arithmetic number, because the mean of its divisors is an integer number (42359835).

Almost surely, 2^84719669 is an apocalyptic number.

It is an amenable number.

84719669 is a deficient number, since it is larger than the sum of its proper divisors (1).

84719669 is an equidigital number, since it uses as much as digits as its factorization.

84719669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 50.

The square root of 84719669 is about 9204.3288185505. The cubic root of 84719669 is about 439.1990749984.

The spelling of 84719669 in words is "eighty-four million, seven hundred nineteen thousand, six hundred sixty-nine".