84713617 has 2 divisors, whose sum is σ = 84713618. Its totient is φ = 84713616.

The previous prime is 84713597. The next prime is 84713621. The reversal of 84713617 is 71631748.

It is a Cunningham number, because it is equal to 9204²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84713616 + 1 = 9204^2 + 1^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84713617 is a prime.

It is a Chen prime.

It is equal to p_4928068 and since 84713617 and 4928068 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (84713627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42356808 + 42356809.

It is an arithmetic number, because the mean of its divisors is an integer number (42356809).

Almost surely, 2^84713617 is an apocalyptic number.

It is an amenable number.

84713617 is a deficient number, since it is larger than the sum of its proper divisors (1).

84713617 is an equidigital number, since it uses as much as digits as its factorization.

84713617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 37.

The square root of 84713617 is about 9204.0000543242. Note that the first 4 decimals coincide. The cubic root of 84713617 is about 439.1886166002.

The spelling of 84713617 in words is "eighty-four million, seven hundred thirteen thousand, six hundred seventeen".