171070890 has 16 divisors (see below), whose sum is σ = 410570208. Its totient is φ = 45618896.

The previous prime is 171070859. The next prime is 171070891. The reversal of 171070890 is 98070171.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (171070891) 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 in 7 ways as a sum of consecutive naturals, for example, 2851152 + ... + 2851211.

It is an arithmetic number, because the mean of its divisors is an integer number (25660638).

Almost surely, 2^171070890 is an apocalyptic number.

171070890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

171070890 is an abundant number, since it is smaller than the sum of its proper divisors (239499318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171070890 is a wasteful number, since it uses less digits than its factorization.

171070890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702373.

The product of its (nonzero) digits is 3528, while the sum is 33.

The square root of 171070890 is about 13079.4070966539. The cubic root of 171070890 is about 555.1266004511.

The spelling of 171070890 in words is "one hundred seventy-one million, seventy thousand, eight hundred ninety".