171398797 has 8 divisors (see below), whose sum is σ = 174473856. Its totient is φ = 168339072.

The previous prime is 171398789. The next prime is 171398809. The reversal of 171398797 is 797893171.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 171398797 - 2³ = 171398789 is a prime.

It is a super-2 number, since 2×171398797² = 58755095226094418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171398197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20028 + ... + 27274.

It is an arithmetic number, because the mean of its divisors is an integer number (21809232).

Almost surely, 2^171398797 is an apocalyptic number.

It is an amenable number.

171398797 is a deficient number, since it is larger than the sum of its proper divisors (3075059).

171398797 is an equidigital number, since it uses as much as digits as its factorization.

171398797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7667.

The product of its digits is 666792, while the sum is 52.

The square root of 171398797 is about 13091.9363350117. The cubic root of 171398797 is about 555.4810611419.

The spelling of 171398797 in words is "one hundred seventy-one million, three hundred ninety-eight thousand, seven hundred ninety-seven".