171670049 has 4 divisors (see below), whose sum is σ = 171720960. Its totient is φ = 171619140.

The previous prime is 171670039. The next prime is 171670067. The reversal of 171670049 is 940076171.

171670049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171670049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (171670019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20009 + ... + 27270.

It is an arithmetic number, because the mean of its divisors is an integer number (42930240).

Almost surely, 2^171670049 is an apocalyptic number.

It is an amenable number.

171670049 is a deficient number, since it is larger than the sum of its proper divisors (50911).

171670049 is an equidigital number, since it uses as much as digits as its factorization.

171670049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50910.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 171670049 is about 13102.2917461030. The cubic root of 171670049 is about 555.7739374360.

The spelling of 171670049 in words is "one hundred seventy-one million, six hundred seventy thousand, forty-nine".