170099947 has 2 divisors, whose sum is σ = 170099948. Its totient is φ = 170099946.

The previous prime is 170099929. The next prime is 170099987. The reversal of 170099947 is 749990071.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170099947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 170099897 and 170099906.

It is not a weakly prime, because it can be changed into another prime (170099987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85049973 + 85049974.

It is an arithmetic number, because the mean of its divisors is an integer number (85049974).

Almost surely, 2^170099947 is an apocalyptic number.

170099947 is a deficient number, since it is larger than the sum of its proper divisors (1).

170099947 is an equidigital number, since it uses as much as digits as its factorization.

170099947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 170099947 is about 13042.2370397106. The cubic root of 170099947 is about 554.0743675879.

The spelling of 170099947 in words is "one hundred seventy million, ninety-nine thousand, nine hundred forty-seven".