84717629 has 2 divisors, whose sum is σ = 84717630. Its totient is φ = 84717628.

The previous prime is 84717623. The next prime is 84717707. The reversal of 84717629 is 92671748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57729604 + 26988025 = 7598^2 + 5195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84717629 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84717629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84717623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42358814 + 42358815.

It is an arithmetic number, because the mean of its divisors is an integer number (42358815).

Almost surely, 2^84717629 is an apocalyptic number.

It is an amenable number.

84717629 is a deficient number, since it is larger than the sum of its proper divisors (1).

84717629 is an equidigital number, since it uses as much as digits as its factorization.

84717629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 84717629 is about 9204.2180004604. The cubic root of 84717629 is about 439.1955497512.

The spelling of 84717629 in words is "eighty-four million, seven hundred seventeen thousand, six hundred twenty-nine".