199471 has 4 divisors (see below), whose sum is σ = 200944. Its totient is φ = 198000.

The previous prime is 199457. The next prime is 199483. The reversal of 199471 is 174991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199471 - 2⁷ = 199343 is a prime.

It is a super-3 number, since 3×199471³ = 23810063269692333, which contains 333 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 (199411) 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, 510 + ... + 811.

It is an arithmetic number, because the mean of its divisors is an integer number (50236).

2¹⁹⁹⁴⁷¹ is an apocalyptic number.

199471 is a deficient number, since it is larger than the sum of its proper divisors (1473).

199471 is a wasteful number, since it uses less digits than its factorization.

199471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472.

The product of its digits is 2268, while the sum is 31.

The square root of 199471 is about 446.6217639121. The cubic root of 199471 is about 58.4287490590.

The spelling of 199471 in words is "one hundred ninety-nine thousand, four hundred seventy-one".